similar issue on my site after upgrade to wordpress 4.3
is related to some javascript magic in case your password reset form contains to fields “pass1” and “pass2”.
After renaming the field “pass2” in my custom form it worked again.
But the standard form for resetting the password now contains only one visible field “pass1” which is prefilled with a generated password. The confirmation field is no longer visible.
The user can no longer enter a hidden password in case he doesn’t accept the generated one.
No such entry in table wp_options!
Regards,
Bernd
