Redmine

Since recently, some system tests in Redmine have started to fail randomly. This patch addresses that issue.

Failure:
IssuesSystemTest#test_create_issue_with_attachment_when_user_is_not_a_member [test/test_helper.rb:231]:
"Issue.count" didn't change by 1, but by 0.
Expected: 15
  Actual: 14

bin/rails test test/system/issues_test.rb:149

Failure:
IssuesSystemTest#test_create_issue_with_attachment [test/test_helper.rb:231]:
"Issue.count" didn't change by 1, but by 0.
Expected: 15
  Actual: 14

bin/rails test test/system/issues_test.rb:134

Failure:
IssuesSystemTest#test_update_issue_with_form_update_should_keep_newly_added_attachments [test/system/issues_test.rb:270]:
Expected: 3
  Actual: 2

...

These failures appear to have started with Chrome 133 and later. The root cause is that the tests verify outcomes before the tested operations—such as issue creation—are fully completed. This patch adds assertions to ensure the operations are finished before verification.

A similar issue, where tests fail due to the changes in Chrome 133 and later, has been reported here:
https://github.com/teamcapybara/capybara/issues/2800

With this fix and the fix from #42422, I have confirmed that all system tests pass with the latest version of Chrome.