Clicking outside the window closes Dialog

[asharonbaltazar]

I have a Dialog with state that depends on URL params. Whenever I click outside the window and return, the Dialog apparently clears the params and closes itself.

I have a reproducible example right here. Toggling isDialogBased will show the difference: when it's off, clicking outside the browser window doesn't clear the query params and, in turn, doesn't close the modal, but when isDialogBased is turned on, it does. If this is a feature/accessibility quirk, I'd like a way to turn it off.