Windows: std.fs.Dir.deleteDir() will delete files

[squeek502]

Test code:

const std = @import("std");

pub fn main() !void {
    if (std.fs.cwd().createFile("file.txt", .{})) |file| {
        file.close();
    } else |err| switch (err) {
        error.PathAlreadyExists => {},
        else => return err,
    }
    // this should fail, but instead it succeeds and deletes file.txt
    return std.fs.cwd().deleteDir("file.txt");
}

I expect the above to return error.NotDir, but instead it just deletes the file.

Even more minimal example has the same behaviour, assuming file.txt already exists:

const std = @import("std");

pub fn main() !void {
    // this should fail, but instead it succeeds and deletes file.txt
    return std.fs.cwd().deleteDir("file.txt");
}