Changes
If parameter 1 starts with "Category:", remove it. This prevents red links, such as Category:Category:ABC.
[[:Category:{{PAGENAME:{{{1}}}}}]] ({{PAGESINCATEGORY:{{PAGENAME:{{{1}}}}}|{{{2|all}}}}})<noinclude>
{{Documentation|Template:Clc/doc}}
[[Category:Internal category-link templates]]
</noinclude>