chrono: Questionable usage of treat_as_floating_point_v<_DurationType>

[Dani-Hub]

In header <chrono>, line

STL/stl/inc/chrono

Line 3392 in 2787718

if (treat_as_floating_point_v<_DurationType> //

, within function _Apply_duration_fields, an if condition contains the expression
treat_as_floating_point_v<_DurationType> where _DurationType represents a std::chrono::duration specialization. But std::chrono::treat_as_floating_point_v ([time.traits.is.fp]) doesn't expect a duration, but performs the test directly on the provided type (usually the representation type of a duration), so this part of the if condition will always evaluate to false, unless a programmer would specialize a duration with a user-provided period or representation type for std::chrono::treat_as_floating_point, which seems unlikely. It seems to me that the mentioned code location intended to use treat_as_floating_point_v<typename _DurationType::rep> instead.