Was kinda (to say mildly) disappointed that this was not yet fixed.
Whenever you use any instant skill/item, your demigod will stop on it's tracks, and start attacking nearest unit if there are any near it.
Most frustrating with wand of speed. You are escaping, use the instant wand, and your demigod stops and attacks the pursuer. You are chasing someone, you use wand of speed, and your demigod stops and starts chasing nearest creep.
Same applies to any other instant item/skill, like favour items, start/stop ooze, ect. (This really hurts oozing UB, as you can't turn the ooze on when you are chasing someone, as you will most likely turn away from that running demigod.)