Make ticks on edges count as open for next bar (instead of close of current bar)

[vbs]

Hello gentlemen,

I am back at this topic (everyhing I say is based on my current understanding, please feel to comment if I am wrong somewhere):
When resampling ticks to a higher timeframe then currently backtrader counts ticks on the edge (e.g. 14:00:00 when Tick -> Hour) as last (closing) value for the current bar. This intentionally as far as I know.
I was expeceting (since I know it from other software packages) that such ticks would count as the open value for the following bar.

I had a topic about this here already (I thought it was a bug back then):
https://community.backtrader.com/topic/777/bug-building-bars-in-live-mode-regarding-last-tick

So I tried to change the backtrader code to make it behave like I am used to. I did it with this commit which touches backtrader's Resampler filter:
https://github.com/verybadsoldier/backtrader/commit/014344445e0fde1b217cf912619839f4cca20cc8

The commit adds a parameter tickedgestart to the Resampler (defaults to False). When setting to True then the alternative behavior is activated (only when resampling Tick). So far it does what I wanted for me.

Please @backtrader would you maybe take a look at the commit and tell me if you see problems with that approach? I feel that I don't have a well enough understanding of the internals to be sure to avoid side effects. :(