$ git clone -n https://src.fedoraproject.org/rpms/gearhead2.git /var/lib/mock/f40-build-2586455-62446/root/chroot_tmpdir/scmroot/gearhead2
Cloning into '/var/lib/mock/f40-build-2586455-62446/root/chroot_tmpdir/scmroot/gearhead2'...
$ git fetch origin 9588550119df39a372ee6b5afd3dae6e0eab3c2e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gearhead2
 * [new ref]         9588550119df39a372ee6b5afd3dae6e0eab3c2e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9588550 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild