Different past versions of COMPANY?
Thanks to everyone who has weighed in! Boq101, your link seems to explain it - my version of the libretto as all the "new" script changes listed here (http://www.sondheim.com/commentary/company_rewritten_4.html) except the Act 2 Scene 3 change, which doesn't reinstate the second half of the scene. Weirdly enough, it's like they read this commentary and re-wrote it as the author suggests, breaking the scene off at "Now THIS is what I call New York."