MB4 243b: Connections Between Two Chatzeiros that Change During Shabbos (374:1)

If two courtyards make one eruv via an opening between them and the opening becomes closed on Shabbos (e.g. the wall collapses) carrying between them is still permitted for that Shabbos (even the courtyard that isn't hosting the eruv food). The Rambam only permits carrying within each chatzer.

What if you closed it during the week and intended for the closure to only be temporary but didn't get around to re-opening it before Shabbos, can you still carry between them if it becomes opened on Shabbos?