$ git clone -n https://src.fedoraproject.org/rpms/mass3.git /var/lib/mock/f38-build-709532-92886/root/chroot_tmpdir/scmroot/mass3
Cloning into '/var/lib/mock/f38-build-709532-92886/root/chroot_tmpdir/scmroot/mass3'...
$ git fetch origin 3ca437c40f4b87124802fb8420b1c1f4492df6cd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mass3
 * [new ref]         3ca437c40f4b87124802fb8420b1c1f4492df6cd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3ca437c Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild