Template Specialization leads to Warning "duplicate registration of link name"

[Reen]

Hi,

I'm trying to use standardese with a complex C++14 codebase. One file gives the following warning:
[standardese linker] [warning] MyNamespace::Constants>::PI: duplicate registration of link name 'MyNamespace::Constants>::PI'
The respective code looks like this:

namespace MyNamespace
{
/**
 * \brief A class that holds mathematical constants.
 */
template<class T>
class Constants
{
};

/**
 * \brief A class that holds mathematical constants as float.
 */
template<>
class Constants<float>
{
public:
    static constexpr float PI = 3.14159265F;       //< Ratio of a circle's circumference to its diameter.

    //...
};

/**
 * \brief A class that holds mathematical constants as double.
 */
template<>
class Constants<double>
{
public:
    static constexpr double PI = 3.1415926535897932;       //< Ratio of a circle's circumference to its diameter.

    //...
};
}

I took some time debugging this issue. The best I came up with is that the method get_template_parameters in comment.cpp doesn't seem to handle this situation properly. For template classes it adds the template parameters within angular brackets, but for template specializations, it just appends a opening angular bracket, then replaces this with a closing angular bracket.
I'm not quite sure about the correct solution to this problem, otherwise I would have written a PR. My best guess is, that I would have to cast the entity to cppast::cpp_class_template_specialization and then add the unexposed arguments into angular brackets. But, would I need to do some further formatting on the list of unexposed arguments or could I just put them there literally?

Thanks for your help,
René