I’m trying to get the origin point for a burn-up chart based on the date the Cumulative story points measure first has any value > 0.
I currently use a partially working solution based on the discussion here for getting the first issue done date but I find it has a flaw I need to work around: if an issue was mistakenly moved to done and then back again, that date seems to be forever entrenched as the first issue done date.
How do I get the start date based on the Cumulative story points measure? i.e., the Feb. 05 date in the pic below and not the Jan. 04 date.