entombed in the shrine of zeroes and ones

Either I was hoaxed a long time ago, or there's some other substance that was once upon a time called "invert sugar" that isn't what is called "invert sugar" now. I remember reading an article about it back in the '80s or '90s that I believe described a substance that was a stereoisomer of sucrose (in other words, comparing the two would be like comparing a left-hand glove with a right-hand glove). Actual invert sugar apparently isn't a stereoisomer, it's just sucrose broken down by an acid and some heat into glucose and fructose.

Color me confused by old memories and new information.