Disable autocompletion in the interaction panel

Right now in the interaction panel the text input element can sometimes be populated with too many annoying suggestions like below: 

This sometimes gets in the way by either accidentally autocompleting or by blocking 1/3 of the panel chat history. If I want to turn this off I typically edit the element on my own and just add: 

autocomplete="off"

added like this: 

    <input type="text" id="cc" name="cc" autocomplete="off">

Adding this one attribute to this element as default would be nice as I have almost never used an auto-complete and they are more annoying than helpful to the interaction panel experience in my opinion.