Tab key overrides main movement even when not mapped to any action

Steps to Reproduce:

1. Remove the Tab key from all existing keybinds

2. Hold the left mouse button to move/attack

3. Tap the Tab key

Observed Results:
Your hero goes to the location/attacks the mob you were targetting when you pressed the tab key and stops.

Expected Results:
The tab key has no effect on the gameplay once it is no longer bound to an action.