[clangd] New overload usage is not found

When changing one function with one default parameter into two functions with zero and with one parameter, clangd only finds second one.

Consider we have Other.h:

#pragma once
struct Other
{
    static void foo(int i = 1);
};

 and main.cpp:

#include "Other.h"
int main()
{
    Other::foo();
    Other::foo(1);
    return 0;
}

Clangd finds both references in main.cpp for foo(), that's correct.

Now, if we close main.cpp in creator and edit Other.h to:

#pragma once
struct Other
{
    static void foo() {}
    static void foo(int i) {}
};

We expect to find one reference in main.cpp for each function.

Actual result: clangd finds 2 references for foo(int) in main.cpp and none for foo().

Additional info: if we keep main.cpp open, it is updated and works correctly.