$ git clone -n https://src.fedoraproject.org/rpms/ghc9.10.git /var/lib/mock/f41-build-851445-165959/root/chroot_tmpdir/scmroot/ghc9.10
Cloning into '/var/lib/mock/f41-build-851445-165959/root/chroot_tmpdir/scmroot/ghc9.10'...
$ git fetch origin 9dce0ab900cea5fcb7cffb01040f2d11b35f71c9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc9.10
 * [new ref]         9dce0ab900cea5fcb7cffb01040f2d11b35f71c9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9dce0ab s390x also needs clang to build the rts