$ git clone -n https://src.fedoraproject.org/rpms/python-flask-sqlalchemy.git /var/lib/mock/f39-build-1601386-38560/root/chroot_tmpdir/scmroot/python-flask-sqlalchemy
Cloning into '/var/lib/mock/f39-build-1601386-38560/root/chroot_tmpdir/scmroot/python-flask-sqlalchemy'...
$ git fetch origin 4a33a31fe3a4b27c76a290cb2b14586828b73e75:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-flask-sqlalchemy
 * [new ref]         4a33a31fe3a4b27c76a290cb2b14586828b73e75 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4a33a31 Update to 3.0.5