Wikimedia Bugzilla is closed!

It's not really important but should be changed/fixed anyway: 
If one uses the same header name multiple times (which can happen on talk pages quite often), the MW software will call the anchors for the second, third, etc. header "XXX 2", "XXX 3", etc. But if there exists both two headers called "XXX" and one called "XXX 2", the software will generate the anchor "XXX 2" twice - once for the duplicate header and once for the one that really is named that way. See this example here: http://en.wikipedia.org/wiki/User:SoWhy/sandbox (the second and third item in the TOC have the same anchor). 
As such, the software needs to be changed to check for duplicated anchors or find an unique way to handle such duplicated headers. 

Regards
SoWhy