ensure that old TAB key binding is not stored if content assist is already active
ensure that old TAB key binding is not stored if content assist is already active

scripted-editor/scripted,scripted-editor/scripted,kyawzinsoe/scripted,sirspock/scripted_token,scripted-editor/scripted,kyawzinsoe/scripted,kyawzinsoe/scripted,sirspock/scripted_token