When logged into my Bitbucket account on SourceTree, if I use the globe button to search Bitbucket for repositories to clone, the HTTPS URL that it fills in is considered invalid.

Steps:
1. Connect SourceTree to a Bitbucket account.
2. Use the Clone/New button to clone a new repo
3. Press the globe button to search for a Bitbucket repo
4. Select a repo and hit OK

The resulting URL uses my email address instead of my username, so that there are two @'s in the URL, and SourceTree considers it invalid.