This issue could be triggered if you try to access a path which contains
the resource path string in its absolute path, while pointing to a directory
which is *not* in the resource path.
It's clearer with an example: with `/my/project` as resource path, the
previous logic would also localize `/my/project_data` to `res://data`, which
is incorrect and would lead to a cryptic error.
Fixes#24761.
Co-authored-by: volzhs <volzhs@gmail.com>
9ad9d1f3b3