svccfg dependency puzzle

In svccfg -s mysvc editprop

### THIS EXISTED:
# delprop dependents
# addpg dependents framework
# setprop dependents/mainpool_smb_server = fmri: (svc:/network/smb/server)
# setprop dependents/mainpool_zones = fmri: (svc:/system/zones)
### ADDING THIS:
setprop dependents/mainpool_nfs_server = fmri: (svc:/network/nfs/server)

In svccfg export mysvc:

    <dependent name='mainpool_smb_server' restart_on='restart' grouping='optional_all'>
      <service_fmri value='svc:/network/smb/server'/>
    </dependent>
    <dependent name='mainpool_zones' restart_on='restart' grouping='optional_all'>
      <service_fmri value='svc:/system/zones'/>
    </dependent>
    <property_group name='dependents' type='framework'>
      <propval name='mainpool_nfs_server' type='fmri' value='svc:/network/nfs/server'/>
    </property_group>
^^^ WTH?

And it does not work dependency-wise (after svccfg refresh):

# svcs -D mount-main-pool
STATE          STIME    FMRI
online          9:58:16 svc:/network/smb/server:default
offline*        9:57:54 svc:/system/zones:default