Timeline mini chart of line chart not clipped correctly when min / max value of x / y is set

[Lyq322]

Describe the bug
When minimum x / maximum x / minimum y / maximum y value is set to a number within the range of x / y values, the mini chart for timeline selection is not clipped correctly.

To Reproduce

1. Enable timeline on line chart
2. Set minimum x / maximum x / minimum y / maximum y value to a number within the range of x / y values

Expected behavior
The mini chart for timeline should be clipped so that only the parts of the chart that is shown in the original chart is shown.

Screenshots

ngx-charts version
20.5.0