Duplicated query string parameter when searching for an extension

When clicking on search for an extension in EM, I got the following URL: http://localhost:8080/xwiki/bin/admin/XWiki/XWikiPreferences?section=XWiki.Extensions&search=mathjax&repo=&recommended=on&recommended=false&indexed=on&indexed=false&compatible=on&compatible=false

The query string parameters are duplicated with different values, the first one is used but it's not great