If a user/group is not part of the assignment of the quick task (assignment tab)

If a user/group is not part of the assignment of the quick task (assignment tab), then they should not be able to see the particular quick task in the quick task channel right?Then why is that user was able to see the quick task which is not assigned to him?Please help. Thanks...

OriginalPostID-73052

OriginalPostID-73052

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