4.3 scale operation can destroy your work.

[pendletonrc]

Accidentally set X scale value to 0 and hit scale. Every thing went away. Hitting reset did not restore the work. First time I encountered the problem it displayed NaN in some fields.

I suggest checking checking for scale values within +- epsilon of 0 to avoid shrinking into nonexistence or causing a NaN exception. Might want to look at what happens if someone with shaky hands (like me) accidentally enters an unreasonably large scale value.

[bakedPotatoLord]

Thanks for fixing this, @stewartoallen 😎