"Current state" displays as "changed" right after virtual machine is powered off with restoring current snapshot

[Winchester]

This problem is similar to the one described and fixed in #6097 but not exactly the same. This is why I am creating new ticket instead of re-opening the old one.

"Current state" displays as "changed" right after virtual machine is powered off with restoring current snapshot.

Scenario to reproduce the problem:
1) Have a virtual machine with at least one snapshot (named as 'Initial snapshot', for example).
2) Power on the machine and close it by selecting "Power off the machine" and marking checkbox "Restore current snapshot 'Initial snapshot'".
Problem: you will get the result as follows:

Initial snapshot (X days ago)

Current State (changed)

It is incorrect that "Current state" is "changed". It must be equal to current snapshot and thus must be displayed without word "changed":

Initial snapshot (X days ago)

Current State

The problem was reproduced in VirtualBox 3.2.6, host OSes are Linux Mandriva 2010, Windows 7, Guest OS is Windows XP SP3. Virtual disk image file format is VDI.