[7.x] [Field formats] Fix switching away from duration formatter (#93818)#94631

Merged

mattkime merged 1 commit intoelastic:7.xfrom mattkime:backport/7.x/pr-93818

Mar 15, 2021

+71-38

Commits on Mar 15, 2021

[Field formats] Fix switching away from duration formatter (elastic#93818 )
mattkime
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