Unusual behaviour in 00_pick_bins.get_best_binning

[kreczko]

Naively I would expect that 00_pick_bins.get_best_binning with min_width=0 behaves like the previous iteration of the function (no min_width). However, I do get consistently lower number of events (and bins) as if the last few where cut off.
This is demonstrated by failures in test_Integral_GetBinContent_consistency.py and test_pick_bins.py

What behaviour do you expect for this?