$ git clone -n https://src.fedoraproject.org/rpms/python-mutatormath.git /var/lib/mock/f39-build-1960514-43267/root/chroot_tmpdir/scmroot/python-mutatormath
Cloning into '/var/lib/mock/f39-build-1960514-43267/root/chroot_tmpdir/scmroot/python-mutatormath'...
$ git fetch origin 958ec6f598ef099337b21d73421d91172a48c615:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-mutatormath
 * [new ref]         958ec6f598ef099337b21d73421d91172a48c615 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 958ec6f Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild