Hi,
existing pull request throws 500 in case that you'll git push --force into used branch, and you'll visit pull request page.
This also happens in case that you've failed to open the pull request (e.g. due missing signed-off commits) and you'll try to open a new one with same branch but again git push --force`d content.
This makes pull requestors quite sad :/
Lubos
Just to note that I can't even close such pull requests :-)
See https://pagure.io/pungi/pull-request/41
Was this a remote pull-request?
I think it was ... I was wondering why do I have to add url for my repo. However this brings other issue that this button was the most shiny one on the page!
You need to visit the branch you want to pull from to get the usual button for creating a pull-request.
As for this issue, it has been fixed in: https://pagure.io/pagure/pull-request/368
And is a duplicate of: https://pagure.io/pagure/issue/350