MAAS GUI shows incorrectly displays false failure message from prior operation

[webteam-app]

Bug originally filed by craig-bender at https://bugs.launchpad.net/bugs/1846959

MAAS version: 2.6.1 (7832-g17912cdc9-0ubuntu1~19.04.1)

When a node that previously failed to deploy/commission (for a correctable reason - let's say a typo in the main package repository url) gets redeployed/recommissioned, the status of that node under the machines tab of the GUI incorrectly show the last status of the prior operation. This message is display for the current operation until the "Configuring OS" status updates the message in the GUI.

This causes confusion and will result in people wrongly aborting operations that (if the error was corrected) would succeed if they just waited.

Screen caps attached.

[huwshimi]

Closing as this is something that needs to be fixed on the backend.