Bug 945711 - [Messages] We lose the 'body' information when migrating. r=vicamo a=v1.3+

dom/mobilemessage/src/gonk/MobileMessageDatabaseService.js

@@ -924,6 +924,7 @@ MobileMessageDatabaseService.prototype = {
       // Participant store cursor iteration done.
       if (!invalidParticipantIds.length) {
         next();
+        return;
       }
 
       // Find affected thread.