Project deletions were failing with "Can't modify frozen hash" because:

1. Project#remove_exports was called in the after_destroy hook
2. This would remove the file and update ImportExportUpload
3. ImportExportUpload#save would attempt to write to a destroyed model

To avoid this, we just check if ImportExportUpload has been destroyed
before attempting to save it.

This would have a side effect of not running after_commit hooks to delete the
repository on disk, making it impossible to delete the project entirely.

Closes #52362

Merge branch '52103-dropzone-css-is-failing-to-load-on-rspec-dev-and-staging-11-4-0-rc' into 'master'

Resolve "Dropzone css is failing to load on rspec, dev and staging 11.4.0 RC"

Closes #52103

See merge request gitlab-org/gitlab-ce!22272

Convert remaining issue board components into ES module syntax

See merge request gitlab-org/gitlab-ce!22210

QA: Retry registration before failing

See merge request gitlab-org/gitlab-ce!22033

[QA] Fix a wrong constant name

Closes gitlab-org/quality/nightly#22

See merge request gitlab-org/gitlab-ce!22264

Add allowance to merge feature flags MRs

See merge request gitlab-org/gitlab-ce!22267

Add `TOP_UPSTREAM_SOURCE_SHA` in `scripts/trigger-build`

See merge request gitlab-org/gitlab-ce!22260

Enhance and test JSON schema for deployments

See merge request gitlab-org/gitlab-ce!22266

Registration intermittently fails without an obvious cause.
The action to click the button seems to move focus to the right button
but nothing happens.
This change attempts to retry the action under the assumption that
Capybara or Chrome is misbehaving.
It also updates the selectors for the sign up page.

Fix broken link and file improvements

See merge request gitlab-org/gitlab-ce!22244

After the 7th it is OK to merge code changes that are merged as long it
is behind a feature flag.

Add in review specifics

See merge request gitlab-org/gitlab-ce!22242

The Menu namespace was changed in
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/22115 and
https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/7799.

Fixes https://gitlab.com/gitlab-org/quality/nightly/issues/22.
Signed-off-by: Rémy Coutable <remy@rymai.me>

Remove Git circuit breaker

Closes #45405

See merge request gitlab-org/gitlab-ce!22212

Backport of CE changes from https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/7844

See merge request gitlab-org/gitlab-ce!22221

Make the variable names consistent by following the
`TOP_UPSTREAM_SOURCE_*` pattern.
Signed-off-by: Rémy Coutable <remy@rymai.me>

This is needed because `GITLAB_VERSION` has a special meaning in
`omnibus-gitlab` triggers: this is the GitLab version to build.

The problem is that `omnibus-gitlab` also has triggers to run QA for an
`omnibus-gitlab` commit, and if we use `GITLAB_VERSION` in that case,
the comment would be posted on the GitLab CE/EE commit (stored in
`GITLAB_VERSION`), whci hwouldn't make any sense.
Thus we need `TOP_UPSTREAM_SOURCE_SHA` to represent the commit on
which we want to leave a comment.
Signed-off-by: Rémy Coutable <remy@rymai.me>

Clarify what happens when enabling a service template

See merge request gitlab-org/gitlab-ce!22240

Update the HA NFS docs

See merge request gitlab-org/gitlab-ce!22239

Move the Auto DevOps note to the top

See merge request gitlab-org/gitlab-ce!21745

Add test of adding file templates via Web IDE and Files view

See merge request gitlab-org/gitlab-ce!21914

Inline RSpec/FilePath rubocop rule

See merge request gitlab-org/gitlab-ce!22233

Was introduced in the time that GitLab still used NFS, which is not
required anymore in most cases. By removing this, the API it calls will
return empty responses. This interface has to be removed in the next
major release, expected to be 12.0.

Clarify SLA for defects

See merge request gitlab-org/gitlab-ce!22229

Also includes some basic fixes to Markdown to make it
adhere to styleguide.

Remove duplicated item in Administration Documentation

See merge request gitlab-org/gitlab-ce!21933

Moves RSpec/FilePath cop from gitlab-styles, so we can specify
filepaths to ignore without hardcoding them in the gem.

Update wiki empty state

See merge request gitlab-org/gitlab-ce!22218

Reorganize menu files

Closes gitlab-org/quality/team-tasks#60

See merge request gitlab-org/gitlab-ce!22115

Resolve "Link for RBAC (experimental support) is going to the wrong anchor"

See merge request gitlab-org/gitlab-ce!22216

Remove unencrypted webhook token and URL columns

Closes #52367

See merge request gitlab-org/gitlab-ce!22199

Resolve "pipeline's page shows vue error on master"

Closes #52372

See merge request gitlab-org/gitlab-ce!22201