RoomDecryptorProvider.getOrCreateRoomDecryptor.onNewSession ConcurrentModificationException

```
java.util.ConcurrentModificationException:
at java.util.ArrayList$Itr.next (ArrayList.java:860)
at org.matrix.android.sdk.internal.crypto.RoomDecryptorProvider$getOrCreateRoomDecryptor$alg$1$1.onNewSession (RoomDecryptorProvider.kt:3)
at org.matrix.android.sdk.internal.crypto.algorithms.megolm.MXMegolmDecryption.onNewSession (MXMegolmDecryption.kt:5)
at org.matrix.android.sdk.internal.crypto.algorithms.megolm.MXMegolmDecryption.onRoomKeyEvent (MXMegolmDecryption.kt:86)
at org.matrix.android.sdk.internal.crypto.DefaultCryptoService$onToDeviceEvent$1.invokeSuspend (DefaultCryptoService.kt:171)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith (ContinuationImpl.kt:3)
at kotlinx.coroutines.DispatchedTask.run (DispatchedTask.kt:18)
at android.os.Handler.handleCallback (Handler.java:938)
at android.os.Handler.dispatchMessage (Handler.java:99)
at android.os.Looper.loop (Looper.java:233)
at android.os.HandlerThread.run (HandlerThread.java:67)
```

| Occurrences (30 days) | Total Occurrences | Impacted users (lifetime) |
| --- | --- | --- |
| 29 | 29 | 28 |

https://play.google.com/console/u/0/developers/{redacted}/app/{redacted}/vitals/crashes/6bfcddc1/details?installedFrom=PLAY_STORE&days=30