Fix thinning

There was still some bug left in EMThinning. No everything is fine. I've run multi-thinning checks on full showers to see if distributions are ok.

added Bug label

assigned to @mreininghaus

added 4 commits

• fd808b48...8da4db6d - 3 commits from branch master
• 10aa76d0 - fix thinning

Compare with previous version

enabled an automatic merge when the pipeline for 10aa76d0 succeeds

mentioned in commit 939dd903

merged