fix(core): Fix undefined type issue with nested fragment spreads #3351
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Description
This pull request addresses a bug where GraphQL types in the TypeTree were becoming undefined when using nested fragment spreads. The issue stemmed from the way fragment children were being merged within the
getTypeNodeByPath
function. It was performing a shallow merge, failing to properly incorporate type information from nested fragments. Relates to #3337.Checklist
📌 Always:
👍 Most of the time: