Editing issues broken (maybe due to taks lists?)

Summary

Trying to edit the following

• https://gitlab.com/inkscape/inkscape-vectors/press/issues/1 and
• inkscape/inkscape-web#128

failed for some members of the @inkscape project (@ryangorley and me respectively)

The error message shown is simply: "Error updating issue" (no additional information).

Guesses: It might be related to task lists or updating links in the issue (or maybe a permissions issue)?