Inverting the field `fixPointArithmetic` in programs, classes and function groups?

[schneidermic0]

Someone suggested to me to revert the field fixPointArithmetic to something like noFixPointArithmetic. Usually, all programs (including classes and function groups) have this flag set. If the field was inverted, it wouldn't be rendered by default.

I think for programs we are still able to change it. For classes and function groups we would have to increase the file format version, since this is an incompatible change.

Furthermore, in a diff you would see that the formatVersion is increased and "fixPointArithmetic": true vanishes.

Any opinions?

[wurzka]

If we newly created the AFF for those types, we would change it, right? Since "noFixPointArithmetic":false/"fixPointArithmetic": true is the default. Also that "fixPointArithmetic": false - I assume the interesting case? - isn't serialized since it is initial, appears to be wrong. So at least we should provide a showAlways