Drain/channeling spells doesn't stop when out of range.

[Lelol]

What is the bug?
Drain/channeling spells never stop when targets run out of range(it stops doing damage as soon as the target is out of range but the spell itself doesn't)

What kind of bug is it? (Quest, Class, Spell, PvE)
Spell

How can you reproduce it?
Go on a warlock for example, duel someone, have him stand at 20 yards or so, cast drain life on him, have him run away from you.

Please describe, in detail, what is suppose to occur when this bug happens:
Drain/channeling spells are supposed to stop when the target is out of range + the 5 or so yards compensation.

Please describe, in detail, what happens when it bugs up, and how it's malfunctioning:
Spell keeps going but with no effect.

Evidence providing proof of bug:
Not needed.

[Itslovelol]

Fixed.

But I think channeled spells are not supposted to get the 5yard give.

Dont know when live.