ChartViewDelegate returns 1 for scale

I implemented the `chartScaled(_ chartView: ChartViewBase, scaleX: CGFloat, scaleY: CGFloat)` delegate function and printed out the scales.

I deactivated Y scaling. Here are some outputs for zooming in:

`X: 0.931536882679692
X: 0.921152964591802
X: 0.894105479811645
X: 0.908065222887242
X: 0.929244839292549
X: 0.947673229224924
X: 0.958397510003029
X: 0.979796538488494
X: 0.987268809472328
X: 0.987106264645887
X: 0.991902980935948
X: 0.994996062039105
X: 0.98359023958723
X: 0.988468473919186
X: 0.921086207380172
X: 1.0
X: 1.0
X: 1.0
X: 1.0
`

As soon as I let go of the pinch-to-zoom It returns 1 a couple of times. Also those values are kind of all over the place while I was just spreading my indexfinger and thumb constantly.
The visuals are working properly though.