[Backport 2.x] Prevent message collection from being updated after message count has been received (#2180)#3035

DarshitChanpura merged 5 commits intoopensearch-project:2.xopensearch-project/security:2.xfrom

DarshitChanpura:backport/backport-2180-to-2.xDarshitChanpura/security:backport/backport-2180-to-2.xCopy head branch name to clipboard