Steps to reproduce:
Set [[MediaWiki:Brackets]] to
'$1', "$1", <$1>
The HTML contains:
title="Foobar &#039;a&#039;, &quot;a&quot;, &lt;a&gt;"
accesskey="a"
Expected result:
title="Foobar 'o', "o", <o>"
accesskey="a"
Version: 1.24rc
Severity: trivial