prevent error with double opt-ins

Author: tttp

package.json

@@ -1,5 +1,5 @@
 {
-  "version": "5.2.3",
+  "version": "5.2.4",
   "license": "AGPL-3.0",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",

src/queue.ts

@@ -105,7 +105,8 @@ export const syncQueue = async (
       //      }
 
       if (action as ActionMessageV2) { // make it easier to process by moving the id to their objects
-        action.campaign.id = action.campaignId;
+        if (action.campaign)
+          action.campaign.id = action.campaignId;
         if (action.action)
           action.action.id = action.actionId;
         if (action.org)