Last modified: 2006-02-16 20:56:31 UTC
Special:Undelete puts the undelete form in the same div as the content. If the content ends with an unclosed tag which has style="display: none", the form is hidden (since Tidy will close the tag only after the content div ends). The fix would be to either end the content div before opening the undelete form, or to wrap the content in an extra div. I will add a testcase on the next comment.
Testcase at [[Special:Undelete/User:CesarB/Testcases/5017]]. Original report at http://en.wikipedia.org/wiki/Wikipedia:Administrators%27_noticeboard/Incidents#Solar_panel
Page display removed from the deleted revisions list (tends to be big and annoying, and can be hostile with long text/css/whatever.)