Changes
search for thumbnail images and add to tracking cat if found
if mw.ustring.sub(image,1,2) == "[[" then
-- search for thumbnail images and add to tracking cat if found if mw.title.getCurrentTitle().namespace == 0 and (mw.ustring.find(image, "|%s*thumb%s*[|%]]") or mw.ustring.find(image, "|%s*thumbnail%s*[|%]]")) then return image .. "[[Category:Pages using infoboxes with thumbnail images]]"; else return image; end
elseif mw.ustring.sub(image,1,2) == "{{" and mw.ustring.sub(image,1,3) ~= "{{{" then
return image;