Repeaters and comparators don't update non-solid blocks in front of them

Repeaters and comparators only give out block updates in case a solid block is in front of them.

Powering a dropper/dispenser or piston like in picture 1, which was possible in all previous versions, is no longer possible, because the dropper/dispenser/piston doesn't receive the information, that it is powered.

Powering only a single piston (picture 2) would be no longer possible without workarounds.

Placing a block in front of the repeater wouldn't work, because it activates both pistons (picture 3)

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[Mojang] Grum (Erik Broes) added a comment - 2 hours ago - edited
This happened when we made the observers not be able to power the airblock in front of them and thus being able to power the observer line with a gaps in it.