Clicking on `Show advanced Git options` field error on the git url field

Description of problem:

In the import from Git form, when the `Show advanced Git options` is clicked, `Required` field error is displayed in the Git URL field.

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

Steps to Reproduce

1. Go to `Import from Git`
2. Click on the `Show advanced Git options` expandable section

Actual results:

• `Required` field error is displayed in the Git URL field.
• The Advanced Git options section is expanded when clicked again

Expected results:

The Advanced Git options section should expand when clicked without throwing any field errors

Reproducibility (Always/Intermittent/Only Once):

Always

Build Details:

4.8.0-0.nightly-2021-06-13-101614

Additional info: