Nyall Dawson 87d9a3e7b2 Don't go to massive negative numbers when incrementing a NULL spin box
When a spin box is showing a NULL value, we DON'T do the default step
behavior, as that would add one step to the NULL value, which is usually
a very large negative value... so the user will get a very large negative number!

Instead, treat the initial value as 0 instead, and then perform the step.
2024-06-29 06:15:01 +10:00
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