Thread:Translating talk:MediaWiki/Meaning of this message?

(NaN $1 intermediate revisionss by more than $2 NaN userss not shown) from MediaWiki:Diff-multi-manyusers
 * As I assume: From the second part of the sentence ( {{PLURAL:$2|) it is clear that there are more than one user, Then how more than one user can do "One intermediate revision" (First plural $1)? Something missing?