[MC-18820] Dispensers/Droppers won't fire if placed in a row and facing west/east

When droppers/dispensers are placed like shown in the picture, the redstone signal from the top will only trigger the dropper/dispenser in the middle. This also works with two droppers/dispensers (The middle one and another one).
This will happen if the droppers/dispensers are facing west or east only!

Environment

Linux x64
java version "1.7.0_21"
OpenJDK Runtime Environment (IcedTea 2.3.9) (7u21-2.3.9-1ubuntu1)
OpenJDK 64-Bit Server VM (build 23.7-b01, mixed mode)

Linked issues

duplicates 1

MC-11193 The order in which powerable blocks (e.g. redstone dust blocks) along a wire are powered or de-powered is not clearly defined and causes a non-deterministic behavior for redstone contraptions Open

Attachments

Comments 2

kumasasa 2013-06-23T06:45:12Z

Can confirm, but for droppers facing north.
Works if droppers are powered directly.

kumasasa 2013-06-23T06:45:33Z

Maybe a side effect of MC-108