POWER-ETHERNET-MIB query: Enabled but disabled?

I'm seeing a device where, on some ports, it reports
pethPsePortAdminEnable=true but pethPsePortDetectionStatus=disabled .
As far as I can tell, this combination of states isn't allowed by the
state diagram in figure 33-6 of 802.1af-2003 - it's only permitted to
be in the DISABLED state when mr_pse_enable is "disabled".  Assuming
that pethPsePortAdminEnable reflects the "disable/enable" states of
mr_pse_enable, this means that it's both disabled and not disabled.

Since this isn't the Hitchhiker's Guide to the Galaxy, any wisdom
as to how a management station should interpret this combination of
values?  Should I just ignore the value of AdminEnable and pretend
that these ports were administratively disabled too?

Thanks,
  Bill