Personalization addTo inline doc

sendgrid · Sep 4, 2022 · 8a8633f · 8a8633f
1 parent dd95642
commit 8a8633f
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/lib/mail/Personalization.php b/lib/mail/Personalization.php
@@ -44,7 +44,9 @@ class Personalization implements \JsonSerializable
     /**
      * Add a To object to a Personalization object
      * If there are substitutions in the To object preserve them
-     * by transferring them to the Personalization object
+     * by transferring them to the Personalization object.
+     * If a substitution with the same key already exists
+     * that takes precedence, and we don't overwrite
      *
      * @param To $email To object
      */