Store in lowercase to avoid duplicates

diff --git a/src/Protocol/PortableContact.php b/src/Protocol/PortableContact.php
index 20f5cb0b02ed172860e80467e478e5b99048ac55..f7ea27d67972522d2efa3bc3d9994a3676145d59 100644 (file)
--- a/src/Protocol/PortableContact.php
+++ b/src/Protocol/PortableContact.php
@@ -1421,6 +1421,7 @@ class PortableContact
                        // Avoid duplicates
                        $tags = [];
                        foreach ($data->tags as $tag) {
+                               $tag = strtolower($tag);
                                $tags[$tag] = $tag;
                        }