$ git clone -n https://src.fedoraproject.org/rpms/ghc-bloomfilter.git /var/lib/mock/f38-build-side-42-init-devel-656529-26596/root/chroot_tmpdir/scmroot/ghc-bloomfilter
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-656529-26596/root/chroot_tmpdir/scmroot/ghc-bloomfilter'...
$ git fetch origin ecfeab6f3a30230f1c850c1fc2e2a2384ae3dca7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-bloomfilter
 * [new ref]         ecfeab6f3a30230f1c850c1fc2e2a2384ae3dca7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ecfeab6 Convert to %autorelease and %autochangelog