I made a typo while proposing a synonym for the [gtk+] tag and ended up with [gtkgtk2]. Nobody has voted on it. This is a feature request for the proposer of a tag synonym to be able to retract that proposal if nobody has voted on it yet.
I definitely think this should be implemented.
Typos are one thing, where it's obvious you made a mistake (it doesn't stop people from upvoting, though).
However, it's the situations where you mistakenly create a proposal that is close but incorrect, or end up with a
[tag3] (or similar) heirarchy, which is obviously not good.
This seems like a really simple thing to implement, and it would allow the community to better manage itself instead of having to ask for help.
I don't think this is necessary. The tag will probably get removed soon anyway.