$ git clone -n https://src.fedoraproject.org/rpms/ghc-language-c.git /var/lib/mock/f38-build-side-42-init-devel-632858-26381/root/chroot_tmpdir/scmroot/ghc-language-c
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-632858-26381/root/chroot_tmpdir/scmroot/ghc-language-c'...
$ git fetch origin ef695e0c084652aca49a435d08909fa608036706:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-language-c
 * [new ref]         ef695e0c084652aca49a435d08909fa608036706 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ef695e0 Convert to %autorelease and %autochangelog