$ git clone -n https://src.fedoraproject.org/rpms/clawsker.git /var/lib/mock/f41-build-side-1-2656065-28431/root/chroot_tmpdir/scmroot/clawsker
Cloning into '/var/lib/mock/f41-build-side-1-2656065-28431/root/chroot_tmpdir/scmroot/clawsker'...
$ git fetch origin 7492f1cf92b66740821cca9a69e6ab38a7743dc4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/clawsker
 * [new ref]         7492f1cf92b66740821cca9a69e6ab38a7743dc4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7492f1c Update to 1.4.0.