derickbailey/backbone.marionette — pull request #168 by ClemensSchneider (2012-06-28 09:39:37+00:00)
Title: append itemViews only after the Collection-/CompositeView has been rendered

the issue arises when a CompositeView has a itemViewContainer
selector defined and a model is added to a collection before the view is
rendered. The itemViewContainer, which will most likely be only
available after the template has been loaded, will then be empty and
adding the itemViews to it is not possible then (only after render has
been called on the view as it clears the itemViewContainer and
re-renders all children)

If the described issue isn't convincing, mabye I can sell it as an optimization in performance, as it saves rendering ItemViews twice (in the case described above) :)