only add task if not yet existent (should not happen anyway, as seqnos are never duplicate !)
only add task if not yet existent (should not happen anyway, as seqnos are never duplicate !)

ibrahimshbat/JGroups,ibrahimshbat/JGroups,ligzy/JGroups,pruivo/JGroups,Sanne/JGroups,dimbleby/JGroups,vjuranek/JGroups,rhusar/JGroups,kedzie/JGroups,rpelisse/JGroups,slaskawi/JGroups,rvansa/JGroups,danberindei/JGroups,ibrahimshbat/JGroups,pferraro/JGroups,deepnarsay/JGroups,belaban/JGroups,slaskawi/JGroups,rhusar/JGroups,pruivo/JGroups,rpelisse/JGroups,ligzy/JGroups,Sanne/JGroups,rpelisse/JGroups,belaban/JGroups,tristantarrant/JGroups,dimbleby/JGroups,vjuranek/JGroups,vjuranek/JGroups,slaskawi/JGroups,TarantulaTechnology/JGroups,kedzie/JGroups,belaban/JGroups,danberindei/JGroups,tristantarrant/JGroups,dimbleby/JGroups,TarantulaTechnology/JGroups,rvansa/JGroups,pruivo/JGroups,pferraro/JGroups,pferraro/JGroups,danberindei/JGroups,deepnarsay/JGroups,ibrahimshbat/JGroups,Sanne/JGroups,ligzy/JGroups,deepnarsay/JGroups,TarantulaTechnology/JGroups,rhusar/JGroups,kedzie/JGroups