500 error when searching group-level issue tracker for "500 error"

Summary

https://gitlab.com/groups/gitlab-org/-/issues&search=500+error produces a 500 error, although the project level searches for the same do not.

Steps to reproduce

View https://gitlab.com/groups/gitlab-org/-/issues?search=500+error

What is the current bug behavior?

500 error

What is the expected correct behavior?

A list of issues with content containing "500 error".

Output of checks

This bug happens on GitLab.com