Problem:
When 'ignorecase' is set, the default keymap Q and Q would exit visual
mode.

This issue was raised in #28287 and a fix was applied in #28289.

However, `==` operator is subject to user `ignorecase` setting.

Solution:
Switching to `==#` operator would guarantee case sensitive comparison
between visual mode and linewise visual mode.

Co-authored-by: Kuanju Chen <kuanju.chen@mksinst.com>
(cherry picked from commit 61aabe0)

This is a maintenance release.

FEATURES
--------------------------------------------------------------------------------
- ebc6c38 lsp: update LSP healthcheck format (#28988)

BUILD
--------------------------------------------------------------------------------
- ba90b54 deps: drop unused bundled bash, python parsers and queries
- 803cc08 deps: bump tree-sitter-c to v0.21.3
- 91e337a deps: bump tree-sitter-query to v0.4.0
- 978b63a deps: bump tree-sitter-vimdoc to v3.0.0
- b322c35 "popcount" name conflict on NetBSD #28983
- b397b56 remove -O2 from gen_cflags
- f77db12 reuse code for deps.txt for both deps and main build
- 46d2906 macos: disable deduplication in link step

FIXES
--------------------------------------------------------------------------------
- 70f7708 assert failure in VimL expression parser
- 28f0320 show swapfile warning as a warning (#28972)
- 0d293e4 api: alloc and draw cursor window in nvim__redraw
- e1b6187 colorscheme: underline StatusLineNC with 'notermguicolors' #28810
- aa13218 column: clamp line number for legacy signs
- df6ce83 column: crash with 'signcolumn' set to "number" (#29003)
- 97be9d8 column: modifying a sign should update placed signs (#29750)
- 21b21b9 comment: fall back to using trimmed comment markers (#28950)
- 0827279 defaults: default @/Q broken when 'ignorecase' is set (#29343)
- 5d9f2d7 drawline: don't draw beyond end of window (#29035)
- eadc4e0 drawline: don't draw beyond end of window with 'rnu' (#29406)
- bec397e extmarks: issues with revalidating marks #28961
- 1fe1f85 filetype: fix typos in filetype detection
- ad55ec3 float: handle error in win_float_create() (#29742)
- bf16fe3 fs: make vim.fs.root work for relative paths and unnamed buffers (#28973)
- 5eaae79 health: broken ruby detect #28804
- 24ee2e7 health: fix fetching url with python in provider health (#29594)
- 7582d4a input: handle vim.on_key() properly with ALT and K_SPECIAL (#29677)
- 4f0c4c3 lsp: add textDocument/documentLink to capability map (#28838)
- 2d7aab6 lsp: avoid vim.keymap.del error when stopping a client (#29478)
- bdd5871 lsp: check if buffer was detached in on_init callback (#28942)
- d8ff216 lsp: clear lsp client diagnostics (#29091)
- 3a727be lsp: detach all clients on_reload to force buf_state reload (#28898)
- e98637e lsp: do not detach from buffer if there are uninitialized clients (#29043)
- 0ee3147 lsp: do not reset buf version when detaching client (#29273)
- 24fa65a lsp: don't show codelens for buffers that don't support it (#29690)
- 4efca7c lsp: handle nil root_dir in health check (#29010)
- efe8a0a lsp: hide layout in codelenses in virtual text (#28794) (#28895)
- 2fb69cc lsp: inlay hints are rendered in the correct order (#29707)
- dfff482 lsp: remove superfluous on_detach callback from semantic tokens module (#29188)
- 10a16c1 lsp: trigger LspDetach on buffer delete
- 33121f1 lua: change some vim.fn.expand() to vim.fs.normalize() (#29583)
- ffc457a marks: revalidate marks whose position did not change
- f82d7b8 mouse: early return when clicking in padded 'statuscolumn' (#29394)
- d6756fc move: half-page scrolling with resized grid at eob (#28821)
- 0cf7e25 path: avoid chdir() when resolving path (#28799)
- 63ff733 quickfix: make shortmess+=O work with cmdheight=0 (#29609)
- 46c2962 runtime: add commentstring for glsl ftplugin
- b98aa78 runtime: source c ftplugin properly for cpp on Windows (#29053)
- 039121f snippet: cancel snippet session when leaving the buffer (#29044)
- 84d7bfc snippet: don't override unnamed register on tabstop select (#29008)
- e13f03a snippet: modify base indentation when there's actually whitespace (#29670)
- 9fd6664 tohtml: extmark text may be out of bounds
- 8c88f40 tohtml: ignore lsp inlay hints
- 5cdf0c2 tohtml: properly handle multiple hl groups #29012
- 3d31909 tohtml: replace ipairs with pairs
- 4150e5e tohtml: show how many warnings are hidden
- 0389472 tohtml: support ranges again
- ab2d243 treesitter: display fields for anonymous nodes in :InspectTree
- 35f6425 treesitter: do not modify highlight state for _on_spell_nav
- 356ddb1 treesitter: ensure syntaxset augroup exists (#29542)
- eb53aba treesitter: recognize aliased parsers in omnifunc, query linter
- b6b2272 tui: move $COLORTERM check to _defaults.lua (#29206)
- 89f29fc tui: remove duplicate disabling of synchronized output (#28884)
- a784b90 tui: skip TUI in ui_rgb_attached (#29096)
- 19787d6 ui: avoid ambiguity about last chunk when flushing halfway (#29718)
- 89fa1ee ui: flush ext_cmdline events before doing cmdpreview (#29062)
- 7055cd1 ui: superfluous showmode / excessive grid_cursor_goto #29089
- 6802db7 version: fix vim.version().prerelease
- 728f6c7 vim.text: remove assert from vim.text.hexdecode
- c3aef56 win-msi: add bin to PATH per-machine after installation (#29099)

VIM PATCHES
--------------------------------------------------------------------------------
- fdf769f 0b74eec: runtime(stylus): remove remaining css code (vim/vim#14866)
- 29fd743 74703f1: runtime(doc): remove obsolete Ex insert behavior (#29702)
- 891cc78 7a85e34: runtime(doc): fix inconsistencies in :h file-searching (#29652)
- 704d336 8.2.0083: text properties wrong when tabs and spaces are exchanged
- 571e54e 8.2.0109: corrupted text properties when expanding spaces
- 7c055bd 8.2.3388: fnamemodify('path/..', ':p') differs from using 'path/../' (#29667)
- 9c91233 9.1.0414: Unable to leave long line with 'smoothscroll' and 'scrolloff'
- 34cc49b 9.1.0498: getcmdcompltype() interferes with cmdline completion (#29397)
- 259a620 9.1.0512: Mode message for spell completion doesn't match allowed keys (#29437)
- f89d4ee 9.1.0526: Unwanted cursor movement with pagescroll at start of buffer (#29569)
- 4ce293c 9.1.0565: Stop directory doesn't work properly in 'tags'
- c467bfe 9.1.0566: Stop dir in findfile() doesn't work properly w/o trailing slash
- 576363a 9.1.0567: Cannot use relative paths as findfile() stop directories
- ceb82a9 9.1.0569: fnamemodify() treats ".." and "../" differently (#29673)
- 07de890 9.1.0580: :lmap mapping for keypad key not applied when typed in Select mode (#29693)
- b01202d 9.1.0594: Unnecessary redraw when setting 'winfixbuf' (#29775)
- 804a94d 9.1.0601: Wrong cursor position with 'breakindent' when wide char doesn't fit (#29793)
- a03cc83 df62c62: runtime(doc): grammar fixes in options.txt (#29729)
- fde5718 partial:9.0.0323: using common name in tests leads to flaky tests

REDACTOR
--------------------------------------------------------------------------------
- c35e040 replace deprecated vim.loop with vim.uv
- 3a354bf lsp: reuse buf_detach_client logic in on_detach (#28939) (#29024)
- dffadc3 path.c: add nonnull attributes (#28829)
- db65017 tests: more global highlight definitions
- 3725db6 tests: use more global highlight definitions

CI
--------------------------------------------------------------------------------
- 7400f9d adjust workflows to enable required checks
- 575136c always add `target:release` label when backporting
- 410f43c bump backport action to version 3
- 9a2760a change label `backport` to `target:release`
- b94b341 run workflows on release branches
- 0e81c62 skip lintcommit workflow on release branches

TESTING
--------------------------------------------------------------------------------
- f033484 add a test for #29119
- 18a36d3 do not set termguicolors in test runner
- 68513c2 fix reporting "no flush received" too early (#29735)
- 981548b remove checks for failed tests on Windows
- 6577612 starting and stopping treesitter highlight (#29546)

DOCUMENTATION
--------------------------------------------------------------------------------
- 891b235 document 'list' behavior when 'listchars' excludes "tab" (#29360)
- 8c00651 fix more treesitter parsing errors
- 777e15f update LSP quickstart (#28989)
- 6136326 lpeg: merge upstream changes
- f7d8650 lsp: format the handwritten part #29295