$ git clone -n https://src.fedoraproject.org/rpms/ghc-base-unicode-symbols.git /var/lib/mock/f38-build-side-42-init-devel-576772-26001/root/chroot_tmpdir/scmroot/ghc-base-unicode-symbols
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-576772-26001/root/chroot_tmpdir/scmroot/ghc-base-unicode-symbols'...
$ git fetch origin 0d654b0320b4ab43a38f83e912fc92ac617ae0af:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-base-unicode-symbols
 * [new ref]         0d654b0320b4ab43a38f83e912fc92ac617ae0af -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0d654b0 Convert to %autorelease and %autochangelog