I think the person may have confused it with the 2 LP Concert version or maybe the London cast which was on 2 LPs and later on 2 CD's but was reissued as a single CD 9by leaving out one very minor track that is mostly dialugue and underscoring and is not a real song, called "Social Dancing.")
The rumors that Capitol had taped the whole score were laid to rest in Ted Chapin's book. Even the abridged songs like "I'm Still Here" were not recorded in any longer form. And "One More Kiss" was a song that Dick Jones wanted left off the album and recorded it saying he would only use it if there was room and then made sure it wasn't on the Lp.
IF you do get the LP make sure it has the insert which contains a really excellent synopsis of the show that was not reprinted in the booklets in either CD edition.
Cast albums are NOT "soundtracks."
Live theatre does not use a "soundtrack." If it did, it wouldn't be live theatre!
I host a weekly one-hour radio program featuring cast album selections as well as songs by cabaret, jazz and theatre artists. The program, FRONT ROW CENTRE is heard Sundays 9 to 10 am and also Saturdays from 8 to 9 am (eastern times) on www.proudfm.com