What are 'dirty' property warning from FC ?

actually, i seem to have some issue when i enable the advanced search plugin.
I get com_content links that end up displaying wrong obviously.

And since i use FC to build a category page view but do not need to have the item view display for some category or type.
So if i manage to have the search working, and if i add content type to "Id of types, avaliable for search". Does it mean the search plugin will only search the category description or the category description plus the items but do not display them?