$ git clone -n https://src.fedoraproject.org/rpms/ghc9.6.git /var/lib/mock/f40-build-1932375-25124/root/chroot_tmpdir/scmroot/ghc9.6
Cloning into '/var/lib/mock/f40-build-1932375-25124/root/chroot_tmpdir/scmroot/ghc9.6'...
$ git fetch origin 999691671b2580a861f9ab273edf9e69676c5c25:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc9.6
 * [new ref]         999691671b2580a861f9ab273edf9e69676c5c25 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9996916 update to 9.6.6