M+ showing same DPS value for different arrows

[Ecuador]

In status window, under "Extended" - the attack and damage per sec. values are being shown the same no matter what type of arrows i'm equipping.

ManaPlus 1.9.3.23

[Livio]

Same thing here on a bit older client.

[jesusalva]

Same thing here on bleeding edge client (ManaPlus b0275108a).
Tested on Evol2 servers.