Since gerrit 90892 the [] for accesskeys are used from message 'brackets', when using other brackets (like '()') there, the regex in module jquery.accessKeyLabel gets not matched, because the [] are hard coded. Same for the word-seperator, when no space is used the regex will also not match:
oldTitle.replace( / \[.*?\]$/, '' )
After fix of bug 48505 there are now two accesskey hints. The default accesskey hint and one with [] and the right buttons (like alt or ctrl), because it is always added.
Version: 1.24rc
Severity: normal