Question about cdb get_fw_info using cmis 4.0

[rqx110]

sonic-platform-common/sonic_platform_base/sonic_xcvr/api/public/cmis.py

Lines 1267 to 1272 in 285a4dd

	if self.cdb.cdb_chkcode(rpl) != rpl_chkcode:
	string = 'Get module FW info: Need to enter password\n'
	logger.info(string)
	# Reset password for module using CMIS 4.0
	self.cdb.module_enter_password(0)
	rpllen, rpl_chkcode, rpl = self.cdb.get_fw_info()

here we info 'Need to enter password', why we reset the password(0x0) instead of using default password(0x00001011)?