$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-ace.git /var/lib/mock/f40-build-798405-141892/root/chroot_tmpdir/scmroot/gap-pkg-ace
Cloning into '/var/lib/mock/f40-build-798405-141892/root/chroot_tmpdir/scmroot/gap-pkg-ace'...
$ git fetch origin 4eb674be67ae7736678fb6900b29d19a21365493:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-ace
 * [new ref]         4eb674be67ae7736678fb6900b29d19a21365493 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4eb674b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild