It should had overwritten the connector data when the
connector attach to a different glue point of the same
object. Let’s always overwrite it, though it waste a
little bit time.

Change-Id: Ib4cc4bf105e5ef17289e027dcddd0110f7297190
Reviewed-on: https://gerrit.libreoffice.org/46559Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Mark Hung <marklh9@gmail.com>