release-22.2:Backport!6822

Merged Andrey Vertiprahov requested to merge cherry-pick-75a7e8bc into release-22.2

#1785 (closed) removed item_frequencies method in fm.reporteventsummary

See merge request !6822 (merged)

(cherry picked from commit 75a7e8bc)

cea879d5 removed item_frequencies method in fm.reporteventsummary 96851c87 Update views.py 63b3955c Update views.py a75bc219 Update views.py 38e67e58 Update views.py

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