see https://jira.atlassian.com/browse/SRCTREEWIN-1498

When I copied a URL for cloning in Source Tree, it is stated under Repository Type that "This is not a valid source path/URL", but when I click "details", nothing is displayed in the pop-up. I am very certain that the URL I used is a valid one because it is copied from github (copy to clipboard).

1. Copy a GIT repository URL to the clipboard (eg, https://github.com/dilshod/xlsx2csv.git )
2. In the repository browser press the "New Repository" button
3. From the popup menu, select "Clone From URL"
4. In the Clone a Repository dialog, note the "This is not a valid source path / URL"
5. In the Clone a Repository dialog, paste the repository URL into the Source URL field
6. In the Clone a Repository dialog, note the "This is not a valid source path / URL"
7. Click on the destination path "dot dot dot" button
8. Select a folder, press Open button
9. In the Clone a Repository dialog, note the "This is not a valid source path / URL"

Finally,

1. Move text focus back to the "Source URL" field
2. Press the tab key
3. In the Clone a Repository dialog, note the disappearance of the "This is not a valid source path / URL"