Sweeping !57420 from master to 21.2. CP algs: Only use efficiency SFs in case of Continuous FTag WP

Atlas Nightlybuildrequested to merge
cherry-pick-87fcb6c4c67-21.2 into 21.2

CP algs: Only use efficiency SFs in case of Continuous FTag WP

See merge request !57420 (merged)

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