I'm sure this isn't a dupe of --MC-108-- as we take that behaviour as an intended feature now.
But as Alugia commented, this might have some relation to the technical aspects mentioned in MC-11193 so this could actually be a dupe of it that had been solved previously and now has come back with these redstone updates.
This is now happening as for snapshot 20w18a.
(Didn't see this ticket when created MC-181606 but it seems essentially the same)