Add ecs@mappings multifields to all fields, not only external ones

[jsoriano]

Multifields added by ecs@mappings are added to all fields, so we also need to add them to all fields
that match and not only to external ones.

[elasticmachine]

💚 Build Succeeded

• Buildkite Build
• Commit: 03f2511

History

• 💔 Build #3842 failed dbc5d84

cc @jsoriano

[jsoriano]

test integrations

[elastic-vault-github-plugin-prod]

Created or updated PR in integrations repository to test this version. Check elastic/integrations#10930

[jsoriano]

Closing, the cases we have now should be rather fixed by elastic/package-spec#784 as mentioned by Mario in #2055 (comment).