* Makes flags properly check themselves
Byond ref: https://www.byond.com/docs/ref/#/operator/&
Basically, flags should use & instead of ==
We can have more than 1 slot on any item, so it's preferred that we do this instead. Even if it doesn't immediately fix any problems, it's something that should be the standard anyways to prevent it from ever being a problem.
Co-authored-by: MrMelbert <51863163+MrMelbert@users.noreply.github.com>
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