Since the Persian garrison did not show up until after 500 BC, what Jewish community preceded them is a matter of conjecture..
Only if you're sure that the request to rebuild the temple (dated to 407 BC) was telling lies about the temple existing prior to Cambyses arriving in Egypt in 525 BC. The burden of proof rests on someone wishing to prove the temple did not exist at the time. The archaeology is silent on it, but the (admittedly limited) documentary evidence pushes this prior to the Persians being in Egypt.