Tip & faceting

[yurivish]

I happened to notice an oddity with selections and faceting: https://observablehq.com/d/a03f70ae5c5962c4

It might be related to #1776 but I can still reproduce the behavior I'm seeing with PlotF from the notebook linked in #1777 so it does not look like the fix for that one also fixes this one.

In this plot, the selection can sometimes be null even though the user is hovering over an item. Giving the plot a wide width fixes it, so it might have to do with the transition between facets and the sequencing of the events that triggers. Interestingly, moving from left to right seems to work, but not right to left.

[Fil]

Thanks for the report! It's a different bug, which happens when two facets change their value at the same time: they both dispatch an event, and the last one wins; the bug happens when the last one is the exiting facet.

[yurivish]

🎉 Thanks for the fix!