Create issue from Vulnerability details - Edited text is discarded

Summary

After creating an issue from Vulnerability details, edited text is discarded.

Steps to reproduce

1. Either clone https://gitlab.com/willmeek/vulnerability_test/ or use this repo (until all vulnerabilities have issues created...)
2. Visit Security & Compliance - Vulnerability Report (eg. https://gitlab.com/willmeek/vulnerability_test/-/security/vulnerability_report )
3. Select a vulnerability
4. Select Create Issue
5. Edit the issue description
6. Select Create
7. Note that the created issue is the pre-edit version (edited description is not shown)

Example Project

https://gitlab.com/willmeek/vulnerability_test/

What is the current bug behavior?

Edited issue description is discarded

What is the expected correct behavior?

Edited issue description is kept

Relevant logs and/or screenshots

Output of checks

This bug happens on GitLab.com

Results of GitLab environment info

This bug happens on GitLab.com

Expand for output related to GitLab environment info

(For installations with omnibus-gitlab package run and paste the output of:
`sudo gitlab-rake gitlab:env:info`)

(For installations from source run and paste the output of:
`sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production`)

Results of GitLab application Check

This bug happens on GitLab.com

Expand for output related to the GitLab application check

(For installations with omnibus-gitlab package run and paste the output of:
sudo gitlab-rake gitlab:check SANITIZE=true)
(For installations from source run and paste the output of:
sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production SANITIZE=true)
(we will only investigate if the tests are passing)

Possible fixes

• backend Modify https://gitlab.com/gitlab-org/gitlab/-/blob/master/ee/app/controllers/ee/projects/issues_controller.rb#L70-72 so that is does not overwrite fields that already exist.