Can't use eternal life flask of freedom if maimed/hindered but at full life

This flask type acts different from all other life and mana flasks, which can be emptied from full life/mana to gain their effect. Tested also on mana flask that negates maim/hinder and the same problem exists--cant use it to negate the maim or hinder unless you are also not on full mana.

Since these are acting differently from all other flasks, I suspect this is a bug. Would be a significant QOL for us if it got fixed.

Thanks,
Orion