FIX: issue #565 (Nested COLLECT INTO crashes)
FIX: issue #565 (Nested COLLECT INTO crashes)

red-eco/red,NikolayShubenkovProgSchool/red,vehar/red,red-eco/red,iArnold/red,rheber/red,vehar/red,rheber/red,iArnold/red,NikolayShubenkovProgSchool/red