[clang-tools-extra] [clang-tidy]Fix PreferMemberInitializer false positive for reassignment (PR #70316)

[Piotr Zegar via cfe-commits]

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@@ -250,7 +250,8 @@ Changes in existing checks
 
 - Improved :doc:`cppcoreguidelines-prefer-member-initializer
   <clang-tidy/checks/cppcoreguidelines/prefer-member-initializer>` check to
-  ignore delegate constructors.
+  ignore delegate constructors and ignore re-assignment for reference or after
+  unsafety assignment.
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PiotrZSL wrote:

would be good to clarify what unsafety means here, maybe "ignore re-assignment for reference or when initialization depend on field that is initialized before."


https://github.com/llvm/llvm-project/pull/70316