Restore histogram consistency #7667
Merged
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@charris This should do it. Not sure about the performance.
The method here is to use the computed index as the initial guess, check the data against the bin that it points to, and adjust up or down by 1 as needed.
Fuzz test: https://gist.github.com/rkern/840b67903e0d033ede1ad47f54aa4200
Fixes #7628