Description of problem

When creating an application the source repository field shows invalid url message, despite the url being in the correct format, this was observed when the Repository type is set to `subversion`

Version-Release number of selected component (if applicable)

MTA 7.3.1

How reproducible

Always

Steps to Reproduce

1. Navigate to the application inventory page in MTA UI
2. Click on create
3. under the source code section select the repository type as `subversion`
4. try to add a url to the Source repository

Actual results

The UI shows invalid url message

Expected results

if the url is valid it should be accepted