The current implementation of SE_Fear will stun the target for the correct amount of time, but there is a slight difference between when the spell wears off and when you are unstunned depending on how far into the current tick the spell is cast.
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++[>++++++<-]>[<++++++>-]<.>++++[>+++++<-]>[<
+++++>-]<+.+++++++..+++.>>+++++[<++++++>-]<+
+.<<+++++++++++++++.>.+++.------.--------.>+.
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