Skill level above 10 in mob_skill_db.txt?

[Habilis]

I've been downgrading file mob_skill_db.txt

to episode 11.1 and I noticed something weird

in pre-re/mob_skill_db.txt

https://github.com/HerculesWS/Hercules/blob/master/db/pre-re/mob_skill_db.txt

the skill level at the position #5 for some skills is above 10

for example Doppelganger Decrese Agi  48 lvl?

MobID,Dummy value (info only),State,SkillID,SkillLv,Rate,CastTime,Delay,Cancelable,Target,Condition type,Condition value,val1,val2,val3,val4,val5,Emotion,Chat
1046,Doppelganger@AL_DECAGI,attack,30,48,500,0,20000,no,target,always,0,,,,,,5,
1046,Doppelganger@AL_DECAGI,chase,30,48,500,0,20000,no,target,always,0,,,,,,5,


Can someone tell me why is that?

Will it make this monster weaker if i decrease those skills to 10 lv like in older emulators?

 

[meko]

Mobs have a different max skill level than players. Currently it's set to 100 by default

EDIT: it seems level 48 is a special case: it gets the rate benefit but has the same duration as level 10
...and this is only true for this one specific skill. Seems like a dirty hack that was added because someone was too lazy to add a new option to mob skill db

 

[meko]

UPDATE:

This was introduced by bbaf869 (& fixed in 77c4315) in response to Herc#5085