The symlinked .clang-format files don't work

[roussak]

I have a project directory with a .clang-format file at its root. I made a symlink to another .clang-format file somewhere in the project tree. It looks like the extension's formatting stuff doesn't see the latter one if I'm trying to format sources placed in the same directory where the symlink is placed. If I'm trying to call the "system" clang-format from the console with the same sources, it sees the symlinked .clang-format. As well, if I copy a .clang-format instead of the making the symlink, the formatting in the IDE works as expected too for these sources.

System information
Clangd version (from the log, or clangd --version):
clangd version 21.0.0git (https://github.com/llvm/llvm-project b62b58d1bbbff7ca200f166603c80470639a0632)
Features: linux+grpc
Platform: x86_64-unknown-linux-gnu

clangd extension version: 0.2.0
Operating system: Arch Linux

[JVApen]

From what I can see, the same code as with clang-format is used for finding the file. See https://github.com/llvm/llvm-project/blob/6a60f18997d62b0e2842a921fcb6beb3e52ed823/clang-tools-extra/clangd/SourceCode.cpp#L583

The only difference I can think of is the definition of the virtual filesystem. Is this somehow does something with symlinks, that could explain the difference