Fix: 1837 boss最后一击被召唤兽击杀，掉落归属有异常（如绝技技能）；

hxp

2018-09-03 cb845a92747a1c9dd03137522d12f12fb56d047f

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CfgID    ActMark    ServerIDList    StartDate    EndDate    StartTime    EndTime    NotifyInfoStart    NotifyInfoEnd    LimitLV    AddExpRate 
1    test2    []    2018-7-10    2018-7-12    12:00|18:00    13:00|19:00    { 0:["ExpActivity_Start", [3]]}    {-5:["ExpActivity_End", [3]], 0:["ExpActivity_Close", [3]]}    110    20000