清理活跃点bug

Gameserver/App/process/TaskProc.php

@@ -319,7 +319,8 @@ class TaskProc {
      */
     static function clearActivePointRewardReceived($type = 1) {
         $reward = ctx()->task->activePointReceived;
-        for ($i = 0; $i < count($reward); $i++) {
+        $num = count($reward);
+        for ($i = 0; $i < $num; $i++) {
             $arr = explode('-', $reward[$i]);
             if($arr[0] == $type){
                 StlUtil::arrayRemoveAt(ctx()->task->activePointReceived,$i);