ACP2E-785: [Premier] List of restricted characters that can be used in Name text fields

Author: glo23503

app/code/Magento/Customer/Model/Validator/Name.php

@@ -15,7 +15,7 @@
  */
 class Name extends AbstractValidator
 {
-    private const PATTERN_NAME = '/(?:[\p{L}\p{M}\,\-\_\.\'’\s\d]){1,255}+/u';
+    private const PATTERN_NAME = '/(?:[\p{L}\p{M}\,\-\_\.\'’`\s\d]){1,255}+/u';
 
     /**
      * Validate name fields.

app/code/Magento/Customer/Test/Unit/Model/Validator/NameTest.php

@@ -81,6 +81,12 @@ public function expectedPunctuationInNamesDataProvider(): array
                 'middleName' => '',
                 'lastNameName' => 'O\'Doe',
                 'message' => 'Legacy straight apostrophe must be allowed in names'
+            ],
+            [
+                'firstName' => 'John',
+                'middleName' => '',
+                'lastNameName' => 'O`Doe',
+                'message' => 'Grave accent back quote character must be allowed in names'
             ]
         ];
     }