Max/Min dynamically range changes.

[NikitaBG]

I can't say that this is an issue on 100%, but i think there is some logic missed.
I have dymanic min and max ranges values.
The problem is, when i have max range 200, and getting NEW max range 300.
Value doesn't changed, until i try to change it again.
If old value 300, and new value 200, it works greatly!
(Same problem for MIN value)
I think the problem in this condition, see attachment.