$ git clone -n https://src.fedoraproject.org/rpms/livecd-tools.git /var/lib/mock/f41-build-side-1-2647851-27319/root/chroot_tmpdir/scmroot/livecd-tools
Cloning into '/var/lib/mock/f41-build-side-1-2647851-27319/root/chroot_tmpdir/scmroot/livecd-tools'...
$ git fetch origin 3039a0b56e25366ede41c923bb5c162c1c829f5c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/livecd-tools
 * [new ref]         3039a0b56e25366ede41c923bb5c162c1c829f5c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3039a0b convert GPLv2 license to SPDX