Add the description of the single commit to the new merge request form when there is a template
When there is no merge request template, we prepopulate the title and description of the single commit on the source branch in the new merge request form or from values in the querystring.
When there is a merge request template, we omit the description from commits or the querystring. I think we should still include them:
- By replacing a marker in the the template (for example
%{commit_message}
) (see !64437 (merged) for similar placeholders) - By adding it to the top of the description field