bugs

Happens on both bot and clan chart. Example: https://i.imgur.com/cZUOXSX.png

I believe it happens in areas where lines from different bots/clans are close together. I believe this fix introduced the problem.

A hint from https://bots4.net/forum/3/8204#103965: The duplicate entries have different values. I hadn't realized that. So maybe it's thinking 2 data points are at the same time for some reason?