Handle redacted e2e event

matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/events/model/Event.kt

@@ -228,4 +228,8 @@ data class Event(
         }
     }
 
+    /**
+     * Tells if the event is redacted
+     */
+    fun isRedacted() = unsignedData?.redactedEvent != null
 }

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/timeline/TimelineEventFactory.kt

@@ -107,7 +107,7 @@ internal class InMemoryTimelineEventFactory @Inject constructor(private val room
                     senderRoomMember?.avatarUrl)
         }
         val event = eventEntity.asDomain()
-        if (event.getClearType() == EventType.ENCRYPTED) {
+        if (event.getClearType() == EventType.ENCRYPTED && !event.isRedacted()) {
             handleEncryptedEvent(event, eventEntity.localId)
         }
 
@@ -141,6 +141,9 @@ internal class InMemoryTimelineEventFactory @Inject constructor(private val room
                 Timber.e(failure, "Encrypted event: decryption failed")
                 if (failure is MXDecryptionException) {
                     event.setCryptoError(failure.cryptoError)
+                } else {
+                    // Other error
+                    Timber.e("Other error, should be handled")
                 }
             }
         }

vector/src/main/java/im/vector/riotredesign/features/home/room/detail/timeline/factory/MessageItemFactory.kt

@@ -71,7 +71,7 @@ class MessageItemFactory @Inject constructor(
 
         val informationData = messageInformationDataFactory.create(event, nextEvent)
 
-        if (event.root.unsignedData?.redactedEvent != null) {
+        if (event.root.isRedacted()) {
             //message is redacted
             return buildRedactedItem(informationData, highlight, callback)
         }

vector/src/main/java/im/vector/riotredesign/features/home/room/detail/timeline/factory/TimelineItemFactory.kt

@@ -55,7 +55,14 @@ class TimelineItemFactory @Inject constructor(private val messageItemFactory: Me
 
                 // Crypto
                 EventType.ENCRYPTION        -> encryptionItemFactory.create(event, highlight, callback)
-                EventType.ENCRYPTED         -> encryptedItemFactory.create(event, nextEvent, highlight, callback)
+                EventType.ENCRYPTED         -> {
+                    if (event.root.isRedacted()) {
+                        // Redacted event, let the MessageItemFactory handle it
+                        messageItemFactory.create(event, nextEvent, highlight, callback)
+                    } else {
+                        encryptedItemFactory.create(event, nextEvent, highlight, callback)
+                    }
+                }
 
                 // Unhandled event types (yet)
                 EventType.STATE_ROOM_THIRD_PARTY_INVITE,