[1.7.4] Disarming Gunsnake with steamsaws gives it inf% attack speed

[arazeru]

As the title says, I fought a gunsnake where after I disarmed it it would make many melee attacks for each turn in combat. In this particular combat I saw it make up to 9 attacks in a row. Looking at the log each of these attacks is an individual T_ATTACK action. On its character sheet it reports 130% global speed and inf% attack speed.

Attached is the te4_log.txt up to the point where I killed gunsnake. The turn where I disarmed gunsnake starts at line 6217 in the file. If it is easier to read, I also attached screenshots of the attack/talents tabs of the character sheet.