$ git clone -n https://src.fedoraproject.org/rpms/ghc-gi-pango.git /var/lib/mock/f38-build-side-42-init-devel-1139653-30414/root/chroot_tmpdir/scmroot/ghc-gi-pango
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1139653-30414/root/chroot_tmpdir/scmroot/ghc-gi-pango'...
$ git fetch origin 5c96d784bf58d92d253df176443a4b75f9c65a1a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-gi-pango
 * [new ref]         5c96d784bf58d92d253df176443a4b75f9c65a1a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5c96d78 Convert to %autorelease and %autochangelog