Mark transition and selections doesn't work well together.

[maxlam79]

I have created a a simple line chart to illustrate the issue, shown here in this repo: https://github.com/maxlam79/graphics_transition_improvement.

My intention was to have the smooth line chart animated upon first loading, and having info displayed with "selections" and "tooltip". But unfortunately, every time when when the mouse hovers on the line, the chart will re-animate itself.

Wonder how can I animate the chart for just the initial load, and not having "selections" triggers the re-animation of the chart.

Hope that someone would look into this.