Is it abug when I can edit a row which the Edit action is disabled?

[gaixixon]

I have an app to assign user with daily task.

Whenever the due date is gone by, I don't want the user to edit the row anymore.

Currently, at Edit action in "/Action/Behavior" section, in Only if this condition is true, I have inputed the condition "1>2"; and the Edit button is gone. The user does not see the Edit button to click.

However, when viewing the disable-to-edit row, if user manually adds "&page=form" in the url of the browser and enter, he CAN STILL edit and save the row.

My question is: Is it a bug, or appsheet just "hide" the Edit button for non-experienced users?