This happens in my pagure dev VM, steps to reproduce
The issue link points to forked project, for example http://127.0.0.1:5000/fork//myproj/issue/3
Expected link should be http://127.0.0.1:5000/myproj/issue/3
Metadata Update from @pingou: - Issue assigned to pingou
Metadata Update from @pingou: - Issue tagged with: bug
Commit 4a2cf2bf fixes this issue