[RoomBubbleCellData] Add room create with predecessor tag in order to identify this particular case

Riot/Modules/Room/CellData/RoomBubbleCellData.m

@@ -44,6 +44,11 @@ static NSAttributedString *readReceiptVerticalWhitespace = nil;
             // Collapse them by default
             self.collapsed = YES;
         }
+        
+        if (event.eventType == MXEventTypeRoomCreate && roomState.hasRoomPredecessor)
+        {
+            self.tag = RoomBubbleCellDataTagRoomCreateWithPredecessor;
+        }
 
         // Increase maximum number of components
         self.maxComponentCount = 20;
@@ -130,6 +135,11 @@ static NSAttributedString *readReceiptVerticalWhitespace = nil;
         return NO;
     }
     
+    if (self.tag == RoomBubbleCellDataTagRoomCreateWithPredecessor || cellData.tag == RoomBubbleCellDataTagRoomCreateWithPredecessor)
+    {
+        return NO;
+    }
+    
     return [super collapseWith:cellData];
 }
 
@@ -483,6 +493,12 @@ static NSAttributedString *readReceiptVerticalWhitespace = nil;
         // We do not want to merge membership event cells with other cell types
         return NO;
     }
+    
+    if (self.tag == RoomBubbleCellDataTagRoomCreateWithPredecessor || bubbleCellData.tag == RoomBubbleCellDataTagRoomCreateWithPredecessor)
+    {
+        // We do not want to merge room create event cells with other cell types
+        return NO;
+    }
 
     return [super hasSameSenderAsBubbleCellData:bubbleCellData];
 }
@@ -494,6 +510,12 @@ static NSAttributedString *readReceiptVerticalWhitespace = nil;
         // One single bubble per membership event
         return NO;
     }
+    
+    if (self.tag == RoomBubbleCellDataTagRoomCreateWithPredecessor || event.eventType == MXEventTypeRoomCreate)
+    {
+        // We do not want to merge room create event cells with other cell types
+        return NO;
+    }
 
     // Update read receipts for this bubble
     self.readReceipts[event.eventId] = [roomDataSource.room getEventReceipts:event.eventId sorted:YES];