wicketstuff/core — pull request #157 by Bols (2012-10-16 06:56:15+00:00)
Title: Fixed misplacement of completion list if the objectautocomplete is used in a scrollable modal window

Code blatantly stolen from wicket-autocomplete.js (Johan Compagner - https://github.com/apache/wicket/commit/fabf8f641d41d968ab7f23adfdaf0c26f5eae62e).

It seems there is some functional overlap with the regular wicket-autocomplete that should be taken advantage of, however this is maybe not straightforward, especially on the javascript side.