Fixed issue where duplicate sub names were possible (#801)

backend/subscriptions.js

@@ -92,7 +92,10 @@ async function getSubscriptionInfo(sub) {
                         }
                         // if it's now valid, update
                         if (sub.name) {
-                            await db_api.updateRecord('subscriptions', {id: sub.id}, {name: sub.name});
+                            let sub_name = sub.name;
+                            const sub_name_exists = await db_api.getRecord('subscriptions', {name: sub.name, isPlaylist: sub.isPlaylist})
+                            if (sub_name_exists) sub_name += ` - ${sub.id}`;
+                            await db_api.updateRecord('subscriptions', {id: sub.id}, {name: sub_name});
                         }
                     }