Resolve "Spinners are active prematurely in Bitbucket Cloud import"

What does this MR do?

Fix a regression which resulted in a loading icon to continuously appear on the Bitbucket project import buttons

What are the relevant issue numbers?

Closes #58889 (closed)

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Tested in all supported browsers
• Conforms to the code review guidelines
• Conforms to the style guides