Show advanced Git options is not clickable (again) in new Git import flow

Description of problem:

Same issue as ODC-6016 (and ODC-5955) with the new git import flow. When the user opens the git import flow the Git repository field get the focus automatically.

When trying to click Show advanced git options the URL is marked as required, the clickable area jumps down and do nothing.

Prerequisites (if any, like setup, operators/versions):

None

Steps to Reproduce

1. Open developer perspective
2. Go to Add > Import from Git
3. Try to click "Show advanced Git options" (without doing anything else)

Actual results:

Advanced Git options does not expand.

Expected results:

Advanced Git options should be shown.

Reproducibility (Always/Intermittent/Only Once):

Always

Build Details:

4.9 master (tested on c317d0619b360b973d9747dbf6348137fbeeeb77)

Additional info:

None