$ git clone -n https://src.fedoraproject.org/rpms/ghc9.10.git /var/lib/mock/f42-build-3406888-45143/root/chroot_tmpdir/scmroot/ghc9.10
Cloning into '/var/lib/mock/f42-build-3406888-45143/root/chroot_tmpdir/scmroot/ghc9.10'...
$ git fetch origin 19ff9c7bb5d125f4041c389b6ec17dcbca9d0588:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc9.10
 * [new ref]         19ff9c7bb5d125f4041c389b6ec17dcbca9d0588 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 19ff9c7 additional llvm fixups from ghc9.12: require clang and disable ppc64le