My use case is:

• Clone a package from src.fp.o with command fedpkg clone -a
• Add a remote (name might be github) pointing (via https) to a repo located in github for example
• Make some changes and commit
• Push changes to the playground repo: git push github master
• Web browser opens a page to login with Fedora FAS.

Expected behavior is: it only makes sense to login with Fedora FAS only for pushing to src.fp.o via https.