[2.3] Failure on controller refresh seem to be causing version to not get updated

[Andres Rodriguez]

I have 4 controllers:

 - 2 Region Rack
 - 2 Rack Controllers

The first even region/rack that was installed, successfully reports the version. All the other controllers didn't report the version and it continued to be shown as unknown, even though I did upgrades or restart. However, I noticed something interesting:

 - On the second Region/Rack, I noticed that refresh was failing on 00-maas-06-get-fruid-api-data. After I disabled the refresh for that script (and upgraded my MAAS), I noticed that the version was shown.
 - On the two rack controllers, I noticed that the version was still not reported. Also noticed that the script in question (00-maas-06-get-fruid-api-data) has a successful result, however, given that it was already disabled, it seems to indicate that rack refresh is not working.

Another unrelated issue I've noticed, is that controllers would be be on a degraded state constantly. After I upgraded to the version of MAAS that disables 00-maas-06-get-fruid-api-data, they are now fully connected.