https://bugzilla.wikimedia.org/show_bug.cgi?id=44133

--- Comment #2 from Juliusz Gonera <[email protected]> ---
I'm always worried about modifying the behaviour of the code we don't write
ourselves, even if it's a small change.

Let's take wgTitle as an example. I can't imagine now any situation where some
MediaWiki JavaScript would want the old wgTItle value, but who knows. Or maybe
there's some code that keeps updating wgTitle in a weird way and will override
what we set there. It just seems bug prone.

I've just thought we could have a very thin wrapper (yay, another one) whose
get() function would first try to return values from our config, and if they
weren't present it would return the value from mw.config. This way we could
always just use one method of accessing config, but at the same time we
wouldn't depend on mw.config internals and the ways it's populated.

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