Bug Report? Shattered Pixel Dungeon v3.3

Bug Report

Shattered Pixel Dungeon Android, version 3.3, github version without Google Play

Huntress, Sniper

Bow augmented for speed

Situation- Floor 19, level 22, chasm floor. Prismatic Image activated. Sniper is attacking from a distance.

Throw unidentified force cube at Golem (prismatic image is next to golem on a chasm bridge). Sniper is in a room.

Force cube identified as Explosive Force Cube +1 x3

Activate speed bow special attack

Speed bow volley attacks prismatic image instead of Golem.

I am guessing that this is not intended behavior.