When a plottable H- or VSpan is set up and it is configured to be a DragFixedSize span, and dragLimitLower and/or dragLimitUpper are set, the span can exit those limits while dragging.
Currently, if I drag on the 2nd edge the 1st edge can get lower than the dragLimitLower value and the same opposite with the 1st edge dragging.
I believe this is not the kind of reaction one would expect.

I believe this part:
https://github.com/swharden/ScottPlot/blob/0fb684146dceb2c4963c9b2289ba9e8494d160df/src/ScottPlot/plottables/PlottableHSpan.cs#L95-L120

should check for boolean:
https://github.com/swharden/ScottPlot/blob/0fb684146dceb2c4963c9b2289ba9e8494d160df/src/ScottPlot/plottables/PlottableHSpan.cs#L71

And adapt to dragLimitLower and dragLimitUpper values.