@Volker_E, I am new to mediawiki, I have been exposed to front end design and development, I am now studying the source code and working of mediawiki.

"duplicate-args-warning", I found this string in Preprocessor_DOM.php Preprocessor_hash.php, I have experienced this bug on my mediawiki instance, Please help me in solving this issue.

I like to work on this.

Hi, I am new to wikimedia, How can I contribute in solving this issue, I have cloned mediawiki repository, the class "tocnumber" is in the css file content.css in mediawiki/resources/src/mediawiki.skinning/ folder, So do I need to modify that content.css css file and update the patch??

With proper indentation and bullet points would make much better appearance

Hi I am new to MediaWiki, Where can I find the source code, where bug is reported