Autosaving customer details makes problems

Hi tim,
frontend - checkout page with two payment methods
I want to change the payment, but I can't.
Chrome browser debug console output (one click - this all):

Autosaving customer details
Processing customer
Processing cart
Processing shipping
Processing payment
Autosaving customer details
Processing customer
Processing cart
Processing shipping
Autosaving customer details
Processing customer
Processing cart
Autosaving customer details
Processing customer
Processing cart
Processing shipping
Processing payment
Processing summary
Autosaving customer details sometimes interrupt payment change process

"timerSubmitCustomer" in "includes/templates/default.catalog/pages/checkout.inc.php" is the problem for me
Does your browser autofill any forms? Is this 2.1.6 or 2.2.0-dev?

There should be only one cycle unless a submit event was passed.

Any modifications that can conflict?
Oh yes, auto-fill customer data with browser and event "focusout" - this is the reason - bad combination
I understand now... thanks.
v2.1.6
no modifications