openlayers/ol3 — pull request #2323 by pagameba (2014-07-09 01:12:17+00:00)
Title: ServerVector addFeaturesInternal fails when features lack an id

`ol.source.ServerVector::addFeatures` will only add the first of an array of features if the features lack an `id` property because `addFeaturesInternal` tries to track them by id to avoid loading the same feature twice. But if the features return nothing for `getId()` then only the first feature will be loaded.