$ git clone -n https://src.fedoraproject.org/rpms/ghc-async.git /var/lib/mock/f40-build-2687587-68095/root/chroot_tmpdir/scmroot/ghc-async
Cloning into '/var/lib/mock/f40-build-2687587-68095/root/chroot_tmpdir/scmroot/ghc-async'...
$ git fetch origin eb2f15b538ae71c23c0a2db04eb9089b8af4ee22:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-async
 * [new ref]         eb2f15b538ae71c23c0a2db04eb9089b8af4ee22 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eb2f15b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild