chatview: avoid to add message twice
chatview: avoid to add message twice

if loadConversation occurs while printing new interactions

Change-Id: If273aaec873f2dd2d243773f2c792bf756322848

savoirfairelinux/ring-lrc,savoirfairelinux/ring-lrc,savoirfairelinux/ring-lrc,savoirfairelinux/ring-lrc,savoirfairelinux/ring-lrc