Prevent unintended password change after clicking "Generate Password" and then "Cancel" when editing a user profile.

Merges [33766] to the 4.3 branch.

Props peterwilsoncc.
Fixes #33419 for 4.3.1.

git-svn-id: https://develop.svn.wordpress.org/branches/4.3@33980 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/js/user-profile.js

@@ -203,6 +203,10 @@
 
 			$generateButton.show();
 			$passwordWrapper.hide();
+
+			// Clear password field to prevent update
+			$pass1.val( '' ).trigger( 'pwupdate' );
+			$submitButtons.prop( 'disabled', false );
 		} );
 
 		$pass1Row.closest('form').on( 'submit', function () {