If you go to the Special:CentralAuth page of a SUL username with unattached local accounts, you will see the list of unattached accounts *above* the table in the "List of local accounts" section.
An example is given in the URL above.
This may not be important after SUL is finalised, but it looks quite strange.
Version: unspecified
Severity: normal
URL: https://meta.wikimedia.org/wiki/Special:CentralAuth/Huh
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=34776