it's possible to drop a nested field in case the value is empty?
example: "log":{"business_information":""}
background:
this is a workaround to avoid mapping issues, as other application logs are creating fields like: log.business_information.id log.business_information.trace
log.business_information is mapped as an object. In case an event with empty value will appear, this event is lost due mapping conflict: object mapping for [log.business_information] tried to parse field [business_information] as object, but found a concrete value"
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