When you translate a Wiki page and add a link to an internal page using double brackets, you don’t have to wait till the referred page is translated and then add a link to that translated page. Instead, you can put the page name inside double curly braces. For example:
[[{{LL|JOSM}}]]
or
[[{{LL|JOSM}}|Display String]]
So, if the target page is not translated yet, you’ll see in in English.