$ git clone -n https://src.fedoraproject.org/rpms/mythes.git /var/lib/mock/f40-build-796542-140696/root/chroot_tmpdir/scmroot/mythes
Cloning into '/var/lib/mock/f40-build-796542-140696/root/chroot_tmpdir/scmroot/mythes'...
$ git fetch origin b01a47c985fdd468d1b8bd9bcbe22cb589a8dc9b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mythes
 * [new ref]         b01a47c985fdd468d1b8bd9bcbe22cb589a8dc9b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b01a47c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild