Affects Version/s: Minecraft 14w18b, Minecraft 1.8.1-pre3, Minecraft 1.8.1-pre4, Minecraft 1.8.1, Minecraft 1.8.2-pre1, Minecraft 1.8.8, Minecraft 15w46a, Minecraft 15w47c, Minecraft 1.8.9, Minecraft 1.12, Minecraft 1.12.2, Minecraft 18w02a
Fix Version/s: None
Windows 7; Java 7 update 45 (up to and including edit 3)
Arch Linux. Oracle JDK 7 update 71. (since edit 4)
This redstone device, when activated with repeaters, will not produce the expected output. When activated with torches, buttons, redstone blocks, levers, etc it works just fine.
Edit: When activated by powering/unpowering a torch it also fails. The only way for it to work is by using a sticky piston and a redstone block.
The expected output is the repeater line outputting exactly 1 game tick (1/20 of a second) after the comparator goes off (as in, turns on), but when activated with repeaters both the comparator and the repeater line go off (turn on) at the same time...
There's a possibility of this being position/orientation dependent, but I haven't tested that...
(Tested as of 1.8.1-pre3) Reproducing now requires a different design. See attachment.