bug in 2.0

[Aryaman]

I am not sure if this has been fixed in 2.1, just in case I report it here.
In a PBEM game Soviet units enter Bucharest and Romanian units change side. There is an axis volunteer unit, Volunteer Standarte NW, that is in garrison in an English city, now the unit ramains in axis side but the city is turned to Romania and so to Allies! I (axis playes) move the unit out of the city and move another axis unit in and the city turns to axis side, and the volunteer unit plays on as a normal axis unit. Rather weird.