Already pm'ed this fix to @Tizet and he verified it works. For anyone that HAS to use this function here is the temp fix (it will be patched soon):
[code=lua]function getTargetsInArea(pos, radius, aggressiveness) --this function will be deprecated completely in the near future, do not use
local n = #Self.GetTargets(radius)
local safe = Self.isAreaPvPSafe(radius+2, true, true) or aggressiveness == 4
return safe and n or 0
end[/code]
Note the comment, this is a deprecated function so it's recommended to phase it out and use 'Self.GetTargets'.