dynamic_relationships_api.md

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title: API for working with `Relationships` and `RelationshipTargets` in type-erased contexts
pull_requests: [21601]

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ComponentDescriptor now stores additional data for working with relationships in dynamic contexts. This resulted in changes to ComponentDescriptor::new_with_layout:

• Now requires additional parameter relationship_accessor, which should be set to None for all existing code creating ComponentDescriptors.