Adminp and change common name problems

We are having a problem with changing users’ common names and adminp. The adminp changes everything correctly; acl’s, groups, person doc, etc. But, about a week later the the username field on the person doc gets changed again to this:

Jane Doe/CERT

Jane Doe/CERT

Jane Doe/CERT

from this:

Jane Doe/CERT

Jane Doe

Jane Smith/CERT

Jane Smith

This also sometimes happens with cert moves.

People complain because they were not alerted of the name change.