Issues when buffer contains special characters

[mkcms]

Using clangd:

1. Find a C++ file with these contents and enable eglot there:

int main()
{
    float circle_area(float, float = 3.14 /*=𝛱*/); circle_are(5);
}

2. The misspelled call to circle_are is highlighted, calling eglot-code-actions on this diagnostic and applying a fix results in:

int main()
{
    float circle_area(float, float = 3.14 /*=𝛱*/); ccircle_area5);
}