zendframework/zf2 — pull request #1955 by juriansluiman (2012-07-23 14:10:03+00:00)
Title: Fix merging of identifiers for Zend\EventManager

The `+` operator does not work in this context of strings, because the new array has a key of `0`. The `+` operator therefore does not merge the `array($stringValue)` with the original identifiers.

Tests are created, code is modified to pass the tests again.