Failure in browser_ui/3_create/merge_request/squash_merge_request_spec.rb | Create Merge request squashing user squashes commits while merging
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### Summary
Failing job(s):
https://gitlab.com/gitlab-org/distribution/reference-architecture-tester/-/jobs/8058313632
Failing spec(s):
Create Merge request squashing user squashes commits while merging
Corresponding test case(s):
https://gitlab.com/gitlab-org/gitlab/-/quality/test_cases/347744
### Stack trace
```ruby
Failure/Error: merge_request_page.mark_to_squash
Capybara::ElementNotFound:
Unable to find css "[data-testid=\"squash-checkbox\"]"
# ./qa/page/base.rb:146:in `find_element'
# ./qa/support/page/logging.rb:39:in `block in find_element'
# ./qa/support/page/logging.rb:214:in `log_slow_code'
# ./qa/support/page/logging.rb:39:in `find_element'
# ./qa/page/base.rb:175:in `check_element'
# ./qa/support/page/logging.rb:56:in `block in check_element'
# ./qa/support/page/logging.rb:214:in `log_slow_code'
# ./qa/support/page/logging.rb:56:in `check_element'
# ./qa/page/merge_request/show.rb:300:in `mark_to_squash'
# ./qa/specs/features/browser_ui/3_create/merge_request/squash_merge_request_spec.rb:35:in `block (4 levels) in <module:QA>'
# ./qa/scenario/actable.rb:16:in `perform'
# ./qa/specs/features/browser_ui/3_create/merge_request/squash_merge_request_spec.rb:30:in `block (3 levels) in <module:QA>'
# /home/gitlab/spec/support/fast_quarantine.rb:22:in `block (2 levels) in <top (required)>'
# ./qa/specs/knapsack_runner.rb:23:in `run'
# ./qa/specs/runner.rb:77:in `run_rspec'
# ./qa/specs/runner.rb:56:in `perform'
# ./qa/scenario/template.rb:10:in `block in perform'
# ./qa/scenario/template.rb:8:in `perform'
# ./qa/scenario/template.rb:35:in `perform'
# ./qa/scenario/template.rb:10:in `block in perform'
# ./qa/scenario/template.rb:8:in `perform'
# ./qa/scenario/bootable.rb:52:in `launch!'
```
### Screenshot / HTML page

### Possible fixes
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issue