A property owner is asking us (the GC) to have our through dates on our own pay applications to match with our subcontractors' through dates. We've never been asked to do this before, is this standard or even allowed?

The property owner for a California development project is requiring us (the GC) to have matching through dates on all tiered waivers. We've never been asked to do this before, because subs might not be working through an entire billing period, and sometimes suppliers may be switched in the middle of a project. Is this a standard practice, or even allowable? Thank you in advance!