$ git clone -n https://src.fedoraproject.org/rpms/ghc-gi-gio.git /var/lib/mock/f40-build-2443651-61128/root/chroot_tmpdir/scmroot/ghc-gi-gio
Cloning into '/var/lib/mock/f40-build-2443651-61128/root/chroot_tmpdir/scmroot/ghc-gi-gio'...
$ git fetch origin a5267a5a5986b8cd29f16d800ba5cf4983cffd0e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-gi-gio
 * [new ref]         a5267a5a5986b8cd29f16d800ba5cf4983cffd0e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a5267a5 Rebuild with haskell-gi-2.26.8