$ git clone -n https://src.fedoraproject.org/rpms/ghc-hashtables.git /var/lib/mock/f42-build-877956-180367/root/chroot_tmpdir/scmroot/ghc-hashtables
Cloning into '/var/lib/mock/f42-build-877956-180367/root/chroot_tmpdir/scmroot/ghc-hashtables'...
$ git fetch origin e1295c76f9d5f3eaa50c453207c2b68a5dbf9173:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-hashtables
 * [new ref]         e1295c76f9d5f3eaa50c453207c2b68a5dbf9173 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e1295c7 patch to fix build with gcc15 C23