single value filters interpreted as array?

[gMakaan]

Found some interested thing about filters:

(= [[Candy-Bar]get[value]]+1 =) resulted in ComputeError: Cannot convert "2.03" to number!

I think best solution here will be using first() function with such filter.

Also found that, conversion this filter to t() (number() fails) extracts single value successfully, but i prefer using first() is better as it directly get value from array.

I propose add some mention about this behavior in plugin TW to new users get in faster about this.