following code throws exception errors (please see attached file) when the amount of contentNodes cannot be divided by 4 (results in an integer)

<cms:contentNodeIterator contentNodeCollectionName="contentCollection" step="4">
<cms:includeTemplate/>
</cms:contentNodeIterator>

if the amount of nodes can be devided by 4, then iteration with step="4" works properly. otherwise it throws an nosuchelementexception. i assume this occurs because after the last iteration haschild() is true, but if there are only 1,2 or 3 nodes left contentNodeIterator is missing the 4th node. the example could be also done with 3 or 5,6,... and it gets more complicated if one uses the 'begin' and/or 'end' attribute as well.