Fixed 6.17.0 Babel transpiling error

[eddyystop]

Using softDelete() pointed out a Babel 6.17.0 transpiling error in iffElse()

[daffl]

What was the error? It looks like it should work (I just tried and it seems to be working with 6.20.0).

[eddyystop]

hooks => hooks ? combine(...hooks).call(this, hook)

transpiled as

var runHooks = function (hooks) {
  return hooks ? combine.apply(this, hooks).call(this, hook) : hook;
};

The second this is wrong.

I didn't investigate if .call(this, ...) always has an issue, or if it occurred in conjunction with the (...hooks).

[daffl]

We can I'd just be curious in which case it'd break (it looks right to me).