Per https://wikitech.wikimedia.org/wiki/Add_a_wiki#IMPORTANT:_For_Private_Wikis before enabling local uploads for a private wiki, we need to check the permissions on the swift containers for the new wiki - see https://wikitech.wikimedia.org/wiki/Swift/How_To#Checking_/_Fixing_container_ACLs_for_private_wikis for details.
Could someone do this for the sysop_plwiki, arbcom_itwiki and u4cwiki wikis?