Currently when changing permissions in the Admin section it instantly saves.
This presents a potential security concern during moments when you are tweaking permissions, where you may inadvertently allow a permission you didn't intend.
For example, when you change certain permissions e.g. "Start Discussions" it will also change a number of linked permissions, which you may not want enabled - so you have to quickly adjust the permissions before anyone notices.
It would be much safer to have a manual "Save" button to apply the permissions you selected when you're comfortable after having fully reviewed them, rather than automatically.
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