I have never heard a stereo recording where the soloist was out of phase between channels. This would be so obvious that I don't see how the recording could get through production that way.
Many recordings have tracks (of the original multichannel master tape) mixed out of phase so as to create the "coming from all over the place" effect. For example, Judy Collins recording of the song "Farewell to Tiwathie" has whale "songs" dubbed in as background, and, with a good matrix multichannel system, the whales swim all around you in the air.
One multichannel SACD, Hilary Hahn playing the Brahms violin concerto got me mad, because, with a perfectly good discrete center channel available, they mixed her into Left and Right.
Maybe this SACD was mixed by the same idiot who made the RCA recording. Interesting that it is also the Brahms concerto. A jinx perhaps?