https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104577

S. Davis Herring <herring at lanl dot gov> changed:

           What    |Removed                     |Added
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                 CC|                            |herring at lanl dot gov

--- Comment #4 from S. Davis Herring <herring at lanl dot gov> ---
The understood direction for CWG2459 makes it clear that class-type template
parameters must indeed be copied; in fact, they have to be copied twice in some
cases to guarantee that they have the correct value when user-provided
constructors are involved.

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