This is very interesting. Would mean that extension request would still be sent Saturday. Govt forced to publish the legislation of the deal, likely increasing number of rebellions.
It increases time for MPs to scrutinise and the information they have available to do so. It is basically a defence against getting bounced into a decision on an artificial timetable.
There are signatories there who are currently pro deal, suggesting that if opposition parties get behind it, it can pass
