Invalid Date format in Hover data when full hour (0 mins)

[fhurta]

If the time is full hour (0 minutes), e.g. 12:00, the minutes part is stripped from points[index].x in plotly_hover event.

For x value of '2001-06-11 12:00', the points[0].x value is '2001-06-11 12' - the missing minutes part makes it invalid Date when used in new Date(points[0].x).

See this codepen

[etpinard]

pinging @alexcjohnson - who's been working on our date handlers lately.

[alexcjohnson]

Ah interesting... true, every other truncation of the full date format is common except this one. I'll make sure we keep minutes unless hours are going away too.