Hi. It looks like there is a problem with the new mojarra versions. When the components a4j:repeat displays the data on page load it is ok. However, when ajax is used for loading additional data (for example on button click more list items are loaded and a4j:repeat refreshed) I get the following error:
java.lang.IllegalStateException: Component ID j_idt60:j_idt78:j_idt79 has already been found in the view.
I've tested with mojarra 2.1.7 and it works fine there.