fix(binding): fix default tag overriding JSON values in anonymous struct #1461
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Fixed two issues:
1. Anonymous embedded struct fields had incorrect JSONName (e.g., "PageInfo.page"
instead of "page"), causing keyExist() to fail
2. Default values from form/query tags were overriding JSON-provided values
Solution:
- Skip JSONName update for anonymous fields to match Go's JSON flattening behavior
- Add defaultDisabled flag to prevent default value override in single loop pass
Test: Added TestBind_AnonymousFieldWithDefaultTag covering 4 scenarios including
nested anonymous structs
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What type of PR is this?
fix: fix default tag overriding JSON values in anonymous struct
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Fixes #1454
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