The currently pressed operator appears in the display

[massimocode]

For example
If I click 1 and then plus and then 2, then the display reads "1+2"
When I click enter, the display reads "3"

I expect the display the read "1" when I click "1"
When I click plus, it should still read "1"
When I click "2" it should read "2"
When I click enter, it should read "3"

[SMH110]

Fixed in b324ba8