Merge branch 'fix-description-templete-error' into 'master'

Fix rich text editor error for new Epic flow

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/181371



Merged-by: Kushal Pandya <kushal@gitlab.com>
Approved-by: Jack Chapman <jachapman@gitlab.com>
Approved-by: Kushal Pandya <kushal@gitlab.com>
Co-authored-by: Rajan Mistry <rmistry@gitlab.com>