Fixed issue where for certain path segments, collection generation failed.

[VShingala]

RCA

When the definition had certain path that contained same name as standard JS prototype properties, collection generation was failing with TypeError.

For example, path like /constructor/v3/update-constructor.

We have following logic to determine if children already is present. Ideally, this should resolve to false while execution but because all JS object has a property called constructor. This was passing and further logic was not maintained correctly.

Fix

Rather than directly accessing the properties, we'll now rely on Object.hasOwnProperty() function that makes sure it's true only when object has such own property.