Thread:Support/About MediaWiki:Translationnotifications-talkpage-body/en

In 0885530922a926aa50f74927516a41ed0a54f325, a feature has been added to include a link to your notification preferences as $9, but the documentation at MediaWiki:Translationnotifications-talkpage-body/qqq says $10. It seems for me that $9 for a link would conflict with $9 as the number of languages you want to receive messages for, any thoughts what's going on here?