defunkt/hub — pull request #269 by wking (2012-12-13 15:17:25+00:00)
Title: pull-request: warn against attaching pull-requests to others' issues

You can only attach a pull request to your own issues [1]. If there is
something wrong with a pull request [2] and the user was trying to attach it
to an existing issue, warn the user about this limitation.

I was expecting something along these lines after @mislav's comment in
trunk yet, so I added it myself.

[1]: https://github.com/defunkt/hub/issues/189#issuecomment-6353354
[2]: https://github.com/defunkt/hub/issues/114#issuecomment-3079021
[3]: https://github.com/defunkt/hub/issues/189#issuecomment-9732490