cp: copying dangling or nested symlink results in error

I have the following directory structure where the file two points to a none existing file.

```
 tree -h a/
 a
└──  c
   └──  d
      └──  2 ⇒ ../../d/c/1
```

When copying with uutils-cp I get

```ShellSession
$ result/bin/cp -r -- a 2
cp: No such file or directory (os error 2)
```

Using gnu-cp works just fine and recreates the dangling symlink.