$ git clone -n https://src.fedoraproject.org/rpms/64tass.git /var/lib/mock/f42-build-3284461-41410/root/chroot_tmpdir/scmroot/64tass
Cloning into '/var/lib/mock/f42-build-3284461-41410/root/chroot_tmpdir/scmroot/64tass'...
$ git fetch origin ff6550c4a48db700d13065ab664cebc9aab1d039:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/64tass
 * [new ref]         ff6550c4a48db700d13065ab664cebc9aab1d039 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ff6550c Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild