Strange warning with -Ysafe-init

[durban]

Compiler version

3.1.0 (using -Ysafe-init)

Minimized code

final class MyClass(o: MyClass) {
  val other: MyClass = {
    if (o ne null) o
    else new MyClass(this)
  }
}

Output

[warn] -- Warning: .../TesT.scala:5:8 
[warn] 5 |    if (o ne null) o
[warn]   |        ^^^^^^^^^
[warn]   |Call method MyClass.this.o.ne(null) on a value with an unknown initialization. Calling trace:
[warn]   | -> else new MyClass(this)    [ TesT.scala:6 ]
[warn]   |   -> final class MyClass(o: MyClass) {       [ TesT.scala:3 ]
[warn] one warning found

Using eq instead of ne results in a similar warning.

Expectation

Unless I'm missing something, calling ne or eq is safe on any value (in fact, they can even be called on null). So I would expect no warning in these cases.

[Xavientois]

I can try to fix this