after panning, a hover label appear above data point close to start position

[antoinerg]

Originally discovered and reported by @jonmmease in #4377, I think this deserves an issue of its own considering it affects many trace types (at least scatter, image, heatmap and probably many more).

When a panning operation is over (ie. mouse up), a hover label will appear above the data point closest to the position of the mouse when the pan operation was initiated (ie. mouse down).

[antoinerg]

@etpinard I think you mentioned you had an idea on how to fix this one. Can you comment on it?

[etpinard]

If I had to bet, I think this has to do with:

plotly.js/src/plots/plots.js

Lines 3227 to 3231 in 31a23fe

	plots.rehover = function(gd) {
	if(gd._fullLayout._rehover) {
	gd._fullLayout._rehover();
	}
	};

plotly.js/src/plots/cartesian/graph_interact.js

Lines 61 to 65 in 31a23fe

	gd._fullLayout._rehover = function() {
	if((gd._fullLayout._hoversubplot === subplot) && gd._fullLayout._plots[subplot]) {
	Fx.hover(gd, evt, subplot);
	}
	};