There is always an entry [0,0] for bar type in new Chart component?

[Kevinkun]

I am testing the new Chart component, and I found this:

when the type is line, it's ok:

but when it's bar type, it shows this:

there is always an entry [0,0].

is this a bug for Chart component?

ps:
and when refresh companion screen, the data entries will remain, we have to use clear block to remove them.

[TIMAI2]

Can confirm this behaviour. Bar Chart seems to want to start its indexing at 0

If you provide list data like so
[[0,10],[1,20],[2,40]]

then no issue