Issue description:

Sorting inventory while in inventory that is not Crafting Grid sorts the hotbar.
https://dbot.serealia.ca/sharex/2017/08/302dfb22e9_%25pn_-2017-08-19_20-45-07.webm

Please report this on the InvTweaks tracker.

Has been reported, let me quote here:
"[...]it's their fault if they aren't correctly marking what slots correspond to what parts of the inventory."

I'm not sure what he means by that.