$ git clone -n https://src.fedoraproject.org/rpms/ghc-gi-glib.git /var/lib/mock/f41-build-2610591-25554/root/chroot_tmpdir/scmroot/ghc-gi-glib
Cloning into '/var/lib/mock/f41-build-2610591-25554/root/chroot_tmpdir/scmroot/ghc-gi-glib'...
$ git fetch origin 7db989d120b0109d91521790464e726bf76e1429:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-gi-glib
 * [new ref]         7db989d120b0109d91521790464e726bf76e1429 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7db989d https://hackage.haskell.org/package/gi-glib-2.0.30/changelog