Liner notes of another release mention this about Russian State Symphony Orchestra: "Polyansky took over as Principal Conductor in 1992 and contributed to the continuing expansion of the Orchestra by successfully merging it with the State Symphonic Cappella".
This means that both sources are talking about the same orchestra:
Liner notes: Russian State Symphony Orchestra + State Symphonic Cappella = Russian State Symphony Orchestra
Wikipedia: USSR Ministry of Culture Symphony Orchestra + USSR State Chamber Choir = State Symphony Capella of Russia (sometimes known as Russian State Symphony Orchestra)
It seems that with some Chandos releases cover credits 2 artists when officially there's been just one artist since the merge. Chandos continued using separate names even 4 years after orchestra & choir was merged.
All the confusion isn't just because of different aliases. It's often considered that orchestra just expanded by merging a choir with it. We would need someone understanding Russian to find out if old orchestra & new ensemble (orchestra & choir) should be merged. Chandos release mentions how orchestra was expanded, Wikipedia lists conductors from 1957, and website of the ensemble is full of history before 1991.
Seems I forgot to reply earlier to this:
I agree, this orchestra has nothing to do with the another one.