$ git clone -n https://src.fedoraproject.org/rpms/ghc-time-compat.git /var/lib/mock/f38-build-side-42-init-devel-826452-28364/root/chroot_tmpdir/scmroot/ghc-time-compat
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-826452-28364/root/chroot_tmpdir/scmroot/ghc-time-compat'...
$ git fetch origin bf4b79c0a496d1906a4402eca940d000cacf052e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-time-compat
 * [new ref]         bf4b79c0a496d1906a4402eca940d000cacf052e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf4b79c Convert to %autorelease and %autochangelog