ezimuel/zf2 — comment on commit 8aead89859ada5f057333e7691fb1e01ae0be61a
File: library/Zend/Config/Writer/AbstractWriter.php line 79
By ezimuel:

Config is not instanceof Traversable, see https://github.com/DASPRiD/zf2/blob/feature/config-refactoring/library/Zend/Config/Config.php#L33
We need the check instanceof Config.