add ctype to attachment package property query

Author: solverat

src/FormBuilderBundle/Stream/AttachmentStream.php

@@ -211,7 +211,7 @@ protected function findExistingAssetPackage(string $packageIdentifier, string $f
                 'assets',
                 'properties',
                 'properties',
-                sprintf('properties.`cid` = assets.`id` AND properties.`name` = "%s"', self::PACKAGE_IDENTIFIER)
+                sprintf('properties.`cid` = assets.`id` AND properties.`ctype` = "asset" AND properties.`name` = "%s"', self::PACKAGE_IDENTIFIER)
             );
         });