web-gui alert light/message does not synchronize fast enough with state of system

[tamada]

On a freshly installed FreeNAS-8.2.0-BETA3-x64 (vmware workstation, 6Gig RAM, 4 disks in a RaidZ1) if one simulates the failure of a disk like following:

1. hard power off freenas (not shutdown)
2. delte one disk (after power failure one disk broke)
3. power back on (good: web-gui alert shows message of Raid being degraded)
4. shutdown freenas
5. add new disk (replacing old disk)
6. power on freenas
7. on "volume status" tab

• replace removed disk with new one
• detach removed disk

8. reload storage tab (no indication of raid being rebuild or anything!)
9. after some waiting reloaded storage tab reports raid being healty but the web-gui alert light is still on and message unchanged (see attached screenshot)
10. after a lot more waiting web-gui alert light also changes back to green

For unexperienced users it is very confusing to not get a status update after replacing the disk (such as raid is being rebuilt). If zfs does not deliver this a hint in the web-gui would be good.
Even more confusing is the web-gui alert light/message not changing as soon as the raid is rebuilt.