I think there is a bug in chown. Not sure

 we just upgraded from redhat 7.5 to redhat enterprise linux ES 2.1 .

I was changing ownerships when I noticed a little anomality.

Lets say I have 3 directories in /home named dir1,dir13,dir17.
Lets also say that I have 3 users by the same names. If I assign =
ownership of /home/dir1/ to user dir1 everything work fine, but if I try =
changing the ownership of /home/dir13/ or /home/dir17/ to users dir13 =
and dir17 the ownership is assigned to the user dir1 instead. Is as if =
the second diget of the name is being ignored. I copied chown from a =
different machine running redhat 7.5 and got the same thing, so I don't =
know if it's a bug.

This happened with other directories users as well. For intance=20
Code:
directory | current owner | try to changed to | actually changed to
-------------------------------------------------------------------
dir20     |   anyone      |   dir20           | dir2
dir21     |   whoever     |   dir21           | dir2
dir35     |   anyuser     |   dir35           | dir3
dir38     |   root        |   dir38           | dir3