I made a syntax error, but it didn't got refused.

[revspace]

I made a syntax error, but it didn't got refused.

[Juerd]

The column isn't missing, but left blank because it is not relevant for an amount of 0.00.

As for "doing what you wanted": bapao 2x indeed doesn't do what you want, but it does do something else. It clearly prints that the next product will be repeated. To get what you wanted (repeat the previous product, you'd type bapao * 2. The * operator can also be spelled x, and whitespace between the operator and the number is optional. "Reverse polish notation" such as bapao 2 * (or bapao 2x) is not supported.

The transaction was incomplete, but because finishing the transaction is done by one plugin (user) and repetition is done by another (repeat, which is kind of a hack), it just kept the repetition operation that was on the stack instead of demanding further input.

I'm keeping this issue open because I can't think of an elegant solution. It is, however, not a big deal, as long as people actually read what's on the screen...