Expanding GFM references into titles with the `+` character produces invalid URLs
Summary
#15694 (closed) introduced a feature where you can append +
to the reference to have GFM use the object's title as the link text. For example, doing this for the reference above as gitlab-org/gitlab#15694+
yields Render the title of a referenced issue within m... (#15694 - closed).
!75719 (merged) expanded this to support URLs. If you try to use this feature with those, the resulting URL is invalid as it has the +
character appended: Render the title of a referenced issue within m... (#15694 - closed) results in a 404.
Edited by Robert Speicher