$ git clone -n https://src.fedoraproject.org/rpms/ghc-gi-atk.git /var/lib/mock/f39-build-1716659-41229/root/chroot_tmpdir/scmroot/ghc-gi-atk
Cloning into '/var/lib/mock/f39-build-1716659-41229/root/chroot_tmpdir/scmroot/ghc-gi-atk'...
$ git fetch origin 147a7d0cfab6f1519292becd2a51a702f1fffa09:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-gi-atk
 * [new ref]         147a7d0cfab6f1519292becd2a51a702f1fffa09 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 147a7d0 https://hackage.haskell.org/package/gi-atk-2.0.27/changelog