$ git clone -n https://src.fedoraproject.org/rpms/ghc9.8.git /var/lib/mock/f40-build-800684-143611/root/chroot_tmpdir/scmroot/ghc9.8
Cloning into '/var/lib/mock/f40-build-800684-143611/root/chroot_tmpdir/scmroot/ghc9.8'...
$ git fetch origin 2f294d96018372a4bf47065a9d0578c91347ad89:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc9.8
 * [new ref]         2f294d96018372a4bf47065a9d0578c91347ad89 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2f294d9 update to 9.8.2