$ git clone -n https://src.fedoraproject.org/rpms/qqc2-desktop-style.git /var/lib/mock/f41-build-2571891-25554/root/chroot_tmpdir/scmroot/qqc2-desktop-style
Cloning into '/var/lib/mock/f41-build-2571891-25554/root/chroot_tmpdir/scmroot/qqc2-desktop-style'...
$ git fetch origin 1620348c9c3895f3e3dae4e27809445cfa350c2c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qqc2-desktop-style
 * [new ref]         1620348c9c3895f3e3dae4e27809445cfa350c2c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1620348 Renamed to kf5-qqc2-desktop-style