Tab character still propagates when editor is in "readonly" mode

[mack-at-pieces]

When the editor is in readonly mode, it seems that when I click the editor and press the "tab" key, the tab character is still inserted into the field. Perhaps I am doing something incorrectly?

Demo Video:
https://user-images.githubusercontent.com/30325757/162511423-60811520-5385-4cfa-b8d3-6a4fe0946010.mov

[BertrandBev]

Yep that's not desirable!