$ git clone -n https://src.fedoraproject.org/rpms/samcoupe-rom.git /var/lib/mock/f40-build-2041068-48407/root/chroot_tmpdir/scmroot/samcoupe-rom
Cloning into '/var/lib/mock/f40-build-2041068-48407/root/chroot_tmpdir/scmroot/samcoupe-rom'...
$ git fetch origin 14a9fb6e4b524accd16c62a3e7cce3811b5f10d4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/samcoupe-rom
 * [new ref]         14a9fb6e4b524accd16c62a3e7cce3811b5f10d4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 14a9fb6 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild