Cherry-pick #20500 to 7.13: [filebeat] clone value when copy fields in processors #26382
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Cherry-pick of PR #20500 to 7.13 branch. Original message:
fix the bug mentioned in #19206
What does this PR do?
clone value when copy field in processors to avoid crash.
Why is it important?
As explained in #19206, a child-document of a map may point to it's root without deep copy.
Related issues