[libcxx-commits] [libcxx] Fixed Reference copy and move assignment operators (PR #125723)

[A. Jiang via libcxx-commits]

frederick-vs-ja wrote:

Could you give a concrete example explaining why the change was necessary?
Is test coverage actually missing, or is this proxy reference type render some iterator or range type fail to satisfy desired concepts?

https://github.com/llvm/llvm-project/pull/125723