$ git clone -n https://src.fedoraproject.org/rpms/ghc9.6.git /var/lib/mock/f38-build-side-42-init-devel-1074931-29805/root/chroot_tmpdir/scmroot/ghc9.6
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1074931-29805/root/chroot_tmpdir/scmroot/ghc9.6'...
$ git fetch origin 1abb4010ba74a13f851d02a60d73329a5b81d0e7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc9.6
 * [new ref]         1abb4010ba74a13f851d02a60d73329a5b81d0e7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1abb401 simplify %_ghcdynlibdir conditions wrt %_libdir