$ git clone -n https://src.fedoraproject.org/rpms/grafx2.git /var/lib/mock/f40-build-2003179-44810/root/chroot_tmpdir/scmroot/grafx2
Cloning into '/var/lib/mock/f40-build-2003179-44810/root/chroot_tmpdir/scmroot/grafx2'...
$ git fetch origin 518405d840bedc80d22d4734709ec1805cdfebd5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/grafx2
 * [new ref]         518405d840bedc80d22d4734709ec1805cdfebd5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 518405d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild