Merge pull request #44457 from nextcloud/fix/contactsinteraction/download-vcard

apps/contactsinteraction/lib/Card.php

@@ -96,7 +96,7 @@ class Card implements ICard, IACL {
 	 * @inheritDoc
 	 */
 	public function getSize(): int {
-		throw new NotImplemented();
+		return strlen($this->contact->getCard());
 	}
 
 	/**