Must terrible bug: One torch is blocking other WITHOUT physical contact

Sorry for my English.

Issue:

• Must terrible bug: One torch is blocking other WITHOUT physical contact

Video: https://youtu.be/ZnrAc4rYbs0?t=10m45s

Timecode:
(version 1.8.8, singleplayer)
10:45: One torch is blocking other WITHOUT physical contact. Impulse duration 4 ticks. Different direction of impulse - different result (compare 3:20, server spigot: Different direction of impulse - some result).

all bugs in different environment - MC-90955