Drupal Association members fund grants that make connections all over the world.
isset() a property of an object that extends FeedsConfigurable always fails.
I need this because we have FeedsSource object wrapped by default entity wrapper. During entity unwrapping we need to know whether our parameter (in my case feeds source id) is set or not. See for more details.
isset calling always returns FALSE because we don't have magic method
Just implement it.
I will provide a patch soon.