WP 34S --> WP 31S

[Paul Dale]

Guess I didn't think UNDO through fully

The analysis is correct. In the first instance UNDO is undoing the + operation which includes the command line parsing and X replacement. In the second, it is still undoing the + operation but here there is no command line parsing taking place.

Although the current behaviour is surprising, it seems like the right thing to do in light of the case of 1 ENTER UNDO. The ENTER clearly must be undone completely. Likewise, 1 FILL UNDO.


- Pauli