fix aspect-ratio changing: don’t move the point under the mouse (as with standard zoom), and implement Alt-wheel to zoom time-only, Alt-Shift-wheel to zoom values only
fix aspect-ratio changing: don’t move the point under the mouse (as with standard zoom), and implement Alt-wheel to zoom time-only, Alt-Shift-wheel to zoom values only

Endika/Natron,Endika/Natron,Endika/Natron