BIND 10 #1934: why "error": "Memory data source is disabled" ?

[BIND 10 Development]

#1934: why     "error": "Memory data source is disabled" ?
---------------------------------+-----------------------------------------
            Reporter:  jreed     |                        Owner:
                Type:  defect    |                       Status:  new
            Priority:  medium    |                    Milestone:  New Tasks
           Component:  b10-auth  |                     Keywords:
           Sensitive:  0         |              Defect Severity:  Low
         Sub-Project:  DNS       |  Feature Depending on Ticket:
Estimated Difficulty:  0         |          Add Hours to Ticket:  0
         Total Hours:  0         |                    Internal?:  0
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 Also related to #1932 and #1933 ...

 {{{

 > Auth loadzone origin=isc.as112.net.
 {
     "error": "Memory data source is disabled"
 }
 }}}

 There was a previous error in the file. Why is it disabled? Or is this my
 misuse of this command?
 So to reload it I did:

 {{{
 > config set Auth/datasources[0]/zones[19]/origin isc.as112.net
 > config commit
 }}}

 (No change to the origin, just set to same name.)

 I realize I may need to provide debugging for this, but will need to
 reproduce on different non-production system, if needed.

-- 
Ticket URL: <http://bind10.isc.org/ticket/1934>
BIND 10 Development <http://bind10.isc.org>
BIND 10 Development