MC-20881: Checkout email input field keeps aria-invalid='true' attribute and value after successful validation

- fixed

Author: Oleksandr Dubovyk

app/code/Magento/Checkout/view/frontend/web/js/view/form/element/email.js

@@ -145,12 +145,17 @@ define([
             var loginFormSelector = 'form[data-role=email-with-possible-login]',
                 usernameSelector = loginFormSelector + ' input[name=username]',
                 loginForm = $(loginFormSelector),
-                validator;
+                validator,
+                valid;
 
             loginForm.validation();
 
             if (focused === false && !!this.email()) {
-                return !!$(usernameSelector).valid();
+                valid = !!$(usernameSelector).valid();
+                if (valid) {
+                    $(usernameSelector).removeAttr('aria-invalid aria-describedby');
+                }
+                return valid;
             }
 
             validator = loginForm.validate();