Data lost on pinch gesture

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## What did you do?

The chart was set and I've used a pinch gesture in order to zoom in the chart.

## What did you expect to happen?

I was expecting that the zoomed version of the chart is shown

## What happened instead?

The data gets lost, graph doesn't exist and then I scroll with finger, the data is presented normally.

## Charts Environment

**Charts version/Branch/Commit Number: 3.6.0
**Xcode version:12.5
**Swift version:5.0+
**Platform(s) running Charts: iOS

https://user-images.githubusercontent.com/981526/116195059-fcb6b300-a731-11eb-9c8e-c4c82b624cae.mp4