MELS: implement [MXKRoomBubbleCellDataStoring collaspseWith:]
MELS: implement [MXKRoomBubbleCellDataStoring collaspseWith:]

vector-im/riot-ios,vector-im/vector-ios,vector-im/riot-ios,vector-im/riot-ios,vector-im/riot-ios,vector-im/vector-ios,vector-im/vector-ios,vector-im/riot-ios,vector-im/riot-ios