$ git clone -n https://src.fedoraproject.org/rpms/libwacom.git /var/lib/mock/f38-build-720527-97669/root/chroot_tmpdir/scmroot/libwacom
Cloning into '/var/lib/mock/f38-build-720527-97669/root/chroot_tmpdir/scmroot/libwacom'...
$ git fetch origin a55db7645cb0e9ee4637022d702d7a2a43e21e85:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libwacom
 * [new ref]         a55db7645cb0e9ee4637022d702d7a2a43e21e85 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a55db76 libwacom 2.7.0