after moveViewToX(),click point, After clicking the point, the line chart appears blank, and normal after sliding

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## What did you do?
self.lineChartView?.moveViewToX(self.lineChartView!.chartXMax)
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## What did you expect to happen?

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## What happened instead?

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## Charts Environment

**Charts version/Branch/Commit Number:**
**Xcode version: 11.3
**Swift version: 4.2
**Platform(s) running Charts: iOS
**macOS version running Xcode: 10.15.2


## Demo Project

ℹ Please link to or upload a project we can download that reproduces the issue.