classes and customization not working

In the nightly build, the default classes (headerClass, dayClass) cannot be redefined, the schedule doesn't change.

Snippet:
=================
<t:schedule
id="cal"
headerClass="mycss"
dayClass="mycss2"
/>
==================
Result: (mycss and mycss2 are ignored)

Debugging a little, I found in AbstractScheduleRenderer.class:

========================
protected String getStyleClass(UIComponent component, String className)

{ [...] Map attributes = component.getAttributes(); String returnValue = (String) attributes.get(className); return returnValue == null ? className : returnValue; }

========================

and it is called like:
getStyleClass(comp, "header");

because of this, the attribute is looked up as "header", but the tag registers it as "headerClass", null is always returned, with every css attribute.
So, even if in the taglib I write headerClass="mycss", it is ignored by the component.