Blood Mage Sanguimancy Weapon Swap Bug

Not sure if this bug occurs just because I have str on my shield, thus different max life values on swap, but whenever I swap weapons, 100% of my overleeched life disappears.
What would make sense is to adjust to 200% of new life value if its smaller, thus I assume it is not working as intended.

It is not the most game-breaking, but effectively soft locks out of using different weapon set ups or anything to do with weapon swap, weapon passives and all things connected to that, as whetever benefits I can get from a swap (I made one for skill effect duration for example) are heavily outweighted by losing half of your HP.

Also experiencing this. It feels terrible for the class if it's intended because it removes weapon swap mechanics