duplicated cards after offline mode

[raQai]

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Describe the bug

Cards are being duplicated after coming back online when previously in offline mode. This sometimes happens multiple times resulting in 5+ copies of the same item. This happened for me with every combination of background sync and etag configuration.

Steps to reproduce the behavior:

1. Open board
2. Enable Airplane mode
3. Create a new card
4. Close the app
5. Disable Airplane mode
6. Open board (optional: manually sync the view)

Expected behavior

The created card (3.) should only be visible once.

Screenshots

Versions

• Nextcloud: 26.0.2
• Nextcloud Deck: 1.9.2
• Nextcloud Android: 3.25.0
• Nextcloud Android Deck: 1.23.3

Smartphone (please complete the following information):

• Device: Multiple (Pixel 4a, Pixel 5, Galaxy S22)
• Android-Version: 13 (GrapheneOS and stock Google/Samsung)
• App-Store:
  • [x] Google Play Store
  • [ ] Google Play Store (Beta channel)
  • [x] F-Droid
  • [ ] Huawei AppGallery

Stacktrace

• log.txt
  Created cards

{"id":570,"title":"offline card"}
{"id":573,"title":"offline card"}

[raQai]

FYI: This happens a lot with an unstable connection (e.g. traveling by train). This is not tied to the Airplane mode but it can be used to consistently reproduce this.

[Goldmaster]

I have this issue as well. It also happens when your nextcloud instance is offline.

I do get this error due to the nextcloud instance being offline as my computer is turned off.

App Version: 1.23.4
App Version Code: 1023004
Server App Version: 1.12.0
App Flavor: fdroid

Files App Version Code: 30270090 (PROD)

---

OS Version: 4.14.113-23326020(G973FXXUEGULB)
OS API Level: 31
Device: beyond1
Manufacturer: samsung
Model (and Product): SM-G973F (beyond1lteeea)

---

com.nextcloud.android.sso.exceptions.NextcloudHttpRequestFailedException: HTTP request failed with HTTP status-code: 530
	at com.nextcloud.android.sso.api.AidlNetworkRequest.performNetworkRequestV2(AidlNetworkRequest.java:197)
	at com.nextcloud.android.sso.api.NextcloudAPI.performNetworkRequestV2(NextcloudAPI.java:180)
	at com.nextcloud.android.sso.api.NextcloudAPI.lambda$performRequestObservableV2$0$com-nextcloud-android-sso-api-NextcloudAPI(NextcloudAPI.java:122)
	at com.nextcloud.android.sso.api.NextcloudAPI$$ExternalSyntheticLambda0.subscribe(Unknown Source:6)
	at io.reactivex.internal.operators.observable.ObservableFromPublisher.subscribeActual(ObservableFromPublisher.java:31)
	at io.reactivex.Observable.subscribe(Observable.java:12284)
	at io.reactivex.internal.operators.observable.ObservableSubscribeOn$SubscribeTask.run(ObservableSubscribeOn.java:96)
	at io.reactivex.internal.schedulers.ScheduledDirectTask.call(ScheduledDirectTask.java:38)
	at io.reactivex.internal.schedulers.ScheduledDirectTask.call(ScheduledDirectTask.java:26)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
	at java.lang.Thread.run(Thread.java:920)
Caused by: java.lang.IllegalStateException: error code: 1033

	at com.nextcloud.android.sso.InputStreamBinder.processRequestV2(InputStreamBinder.java:454)
	at com.nextcloud.android.sso.InputStreamBinder.performNextcloudRequestAndBodyStreamV2(InputStreamBinder.java:127)
	at com.nextcloud.android.sso.InputStreamBinder.performNextcloudRequestV2(InputStreamBinder.java:110)
	at com.nextcloud.android.sso.aidl.IInputStreamService$Stub.onTransact(IInputStreamService.java:110)
	at android.os.Binder.execTransactInternal(Binder.java:1215)
	at android.os.Binder.execTransact(Binder.java:1179)

Screenshot showing card waiting to sync

[michel-thomas]

I also have a user with this problem. No known connection issue, but cards are duplicated several times (36 for the last card created today).

Nothing in server logs.

• Nextcloud 27.1.7
• Deck app 1.11.4
• Deck Android : 1.24.1