$ git clone -n https://src.fedoraproject.org/rpms/python-gstreamer1.git /var/lib/mock/f45-build-30895-648/root/chroot_tmpdir/scmroot/python-gstreamer1
Cloning into '/var/lib/mock/f45-build-30895-648/root/chroot_tmpdir/scmroot/python-gstreamer1'...
$ git fetch origin 1ea67f893ab9fbb31cc0367c322156d0c053836e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-gstreamer1
 * [new ref]         1ea67f893ab9fbb31cc0367c322156d0c053836e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ea67f8 1.28.7