rejecting a pull request does not work (BB-5156)

you get the dialogue querying for the reason and when you submit it, it just sits there, showing some round "progress indicator" in the submit button and nothing happens (never finishes).

in case it matters, the changesets originally included in that pull request were deleted.

It is this, i can't get rid of it:

https://bitbucket.org/thomaswaldmann/moin-2.0/pull-request/75/preload-ptime-widget-with-the-current