Member invite modal shows broken error message

The modal for inviting members shows the error message in an unordered list here, with each character on a separate line, instead of a string. The error in the screenshots below says Invite limit of 0 per day exceeded:

Screenshots

Steps to reproduce

git apply invite_modal_error_reproduce.patch the following patch to easily reproduce the issue and invite a member to a group or project.

invite_modal_error_reproduce.patch

Implementation plan

this.invalidMembers should be an object. In this case it is a string. Update to be an object.