Added problem with multiple upstream signers.
Added problem with multiple upstream signers.

BII-Lab/Yeti-Project,Antonio-Prado/Yeti-Project,Antonio-Prado/Yeti-Project,shane-kerr/Yeti-Project,BII-Lab/Yeti-Project,BII-Lab/Yeti-Project,shane-kerr/Yeti-Project,shane-kerr/Yeti-Project,Antonio-Prado/Yeti-Project,Antonio-Prado/Yeti-Project,shane-kerr/Yeti-Project,BII-Lab/Yeti-Project