Steps to reproduce:
1.Open a page with VE
2.Insert an image
3.Open the Media Settings dialog for the image
4.Go to Advanced Settings tab
5.Click on "Make full size"
Observed Result:
It switches to the Custom tab and keeps the size value as default instead of making it full size.
Environment:Betalabs,test2, en.wiki
Version: unspecified
Severity: normal