$ git clone -n https://src.fedoraproject.org/rpms/m4.git /var/lib/mock/f40-build-785142-133813/root/chroot_tmpdir/scmroot/m4
Cloning into '/var/lib/mock/f40-build-785142-133813/root/chroot_tmpdir/scmroot/m4'...
$ git fetch origin c06055e568627af420bf84040985091bc62aa200:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/m4
 * [new ref]         c06055e568627af420bf84040985091bc62aa200 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c06055e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild