Property display problem for items with mindgloom

[ghostbuster]

If you have 2 items with mindgloom, one in the inventory with, say 19% chance to cause random insanity, and the 2nd worn with 21% chance, and that you compare them, the display will be

....
Effects on melee hit:
19% chance to cause random insanity
Damage (melee):0 (-21) item mind gloom
...

instead of
...
Effects on melee hit:
19% (-2) chance to cause random insanity
...

BTW, I tried to make a screenshot, but it does not work when ctrl is used (to compare items). May be considered as a (minor) bug.