Commit c661a8b 'Don't use numpy for calculating sigmas' has made in some cases a slight modification in images generation

[thecat99z]

Was trying to reproduce some old images I generate before by just dragging the png and then all the workflow included in the metadata. And by surprise when it comes to some complex workflows, I'm now unable to reproduce the same output. All have a slightly difference.

After checking out the different commits from the last days the modification came from the commit 'Don't use numpy for calculating sigmas.

Don't know if it's good or bad. some images are just a bit different.

Doesn't seem to affect a simple basic workflow though

Anyone noticed that too ? And what exactly calculating sigmas differently do now ?