Order of document types in folder workflow dropdown is not preserved

In our content structure we have restrictions on almost every folder by using specific template queries, e.g. a query "new-folder" and a query "new-news-document", which are set in the hippostd:foldertype property of a folder like so:

<sv:property sv:name="hippostd:foldertype" sv:type="String">
<sv:value>new-news-document</sv:value>
<sv:value>new-folder</sv:value>
</sv:property>

Both queries contain exactly 1 document / folder type. I expect to see the "Create news document" in the top of the folder workflow context menu, and "Create folder" below that, but that is not always the case! The order seems random.