"Save & Continue" button is getting disabled after entering duplicate email ID on Demographics page.

Environment - LB

1] Add a employee so that OD tour get assigned to him.
2] Start the tour , On "Demographics" page enter email ID which is already exists.
3] Click on "Save & Continue button.
4] Duplicate email ID pop up gets display.
5] Observe the "Save & Continue" button.

Actual Result:
"Save & Continue" button is disabled and user needs to use "Back" option in order to make it enable.
Expected Result:
"Save & Continue" button should not be get disabled.

Cc: Saurabh Sablaka, Prasad Pise
Refer attached screenshot for more details.