For example: Both page 1 and page 2 are connected to multiple locations with different publication package at each location, so the pages will get published twice, each time to a different location.
Obsolete Solution (Not working in 9 or 10)
Edit the content class of "RSS Listing", use preexecution to replace islink=2 with islink=10 to trick CMS into thinking the following pages are references, hence not to crawl and publish following pages.
All Version Compatible Solution
Use the list to pull info_page_guid from the connected page.
<!IoRangeList> <!IoRangeNoRedDotMode><!IoRangeRedDotMode><!--<%lst_pages%>--><!/IoRangeRedDotMode><!/IoRangeNoRedDotMode> <li><%!! Context:Pages.GetPage(Guid:<%inf_page_guid%>).GetUrl(Bool:True) !!%></li> <!/IoRangeList>
Page 1 and page 2 still get published according to different publication packages, but links generated always point to the pages' main link