$ git clone -n https://src.fedoraproject.org/rpms/vrq.git /var/lib/mock/f42-build-3408513-45145/root/chroot_tmpdir/scmroot/vrq
Cloning into '/var/lib/mock/f42-build-3408513-45145/root/chroot_tmpdir/scmroot/vrq'...
$ git fetch origin 9e4d9c9ac65dc9a3519b7a6ccb0d30cebd0971d4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vrq
 * [new ref]         9e4d9c9ac65dc9a3519b7a6ccb0d30cebd0971d4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9e4d9c9 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild