Small fix for null parent

[josepaiva94]

I had to add a null check because sometimes a null parent here raises an exception in Mosca

[coveralls]

Coverage increased (+0.009%) to 96.588% when pulling 5b1e163 on josepaiva94:master into 61a3382 on mcollina:master.

[mcollina]

Can you please add a unit test?

[coveralls]

Coverage increased (+0.1%) to 96.692% when pulling 32309b7 on josepaiva94:master into 61a3382 on mcollina:master.

[coveralls]

Coverage increased (+0.1%) to 96.692% when pulling 32309b7 on josepaiva94:master into 61a3382 on mcollina:master.

[coveralls]

Coverage increased (+0.1%) to 96.692% when pulling 32309b7 on josepaiva94:master into 61a3382 on mcollina:master.

[josepaiva94]

Done ;)

[mcollina]

Just to clarify, you should not do this. This library is fast, and it is clearly written in the caveats, the callback must be called only once. It is built to iterate over things, so use it twice:

instance(obj, something, args, released)

function something (nums, cb) {
  instance(obj, function(num, cb) {
       setImmediate(cb, null, num * 2)
   }, nums, cb)
 }

[josepaiva94]

Thanks! With your hint I've found that I forgot a return after calling the callback function.