Comment 1 for bug 591461

Further detail:

I hold a philo, which is +30 mana.
Tick passes and I lose 30 from max mana.
I remove the philo and I lose another 30 from max mana.

I wear arcanes, which are +15 mana.
Tick passes and I lose 30 from max mana.
I remove arcanes and lose a further 30 from max mana.

Looks like a pattern to me :)

So it's not the +mana affect that is being applied inversely to max-mana, it's something else which = 30.

A similar effect occurs if you wear shimmering sandals which have a mana-regen affect but on removing them my mana regen drops by about 96, consistently.

So affects are being applied correctly by affect-type but they are being applied to the wrong stat and the wrong affect-amount is being applied.

That's what I think I'm seeing anyway.