mlocate is a locate/updatedb implementation. The 'm' stands for "merging": updatedb reuses the existing database to avoid rereading most of the file system, which makes updatedb faster and does not trash the system caches as much.
The locate(1) utility is intended to be completely compatible to slocate. It also attempts to be compatible to GNU locate, when it does not conflict with slocate compatibility.
The current mlocate version is 0.26. Download mlocate-0.26 (or older versions). .
Please consider reporting the bug to your distribution's bug tracking system instead.