UserAgent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0

Steps to reproduce the problem:
1. open an html file that loads the attached index.js script
2. Open the DevTools
3. change the function `foo` like the following:

function foo() {
  bar();
}

function bar() {
  window.alert('bar');
}

4. click on the window

What is the expected behavior?
`bar` gets evaluated, an alert with "bar" is displayed

What went wrong?
The definition of `foo` is never updated.

Did this work before? No 

Chrome version: 58.0.3029.81 (64-bit)  Channel: stable
OS Version: Fedora 25 64bit
Flash Version: 

Sniffing the devtools and looking at the WebSocket, it looks like the hotswap fails silently, here's the result of the `Debugger.setScriptSource` call:

{"id":154,"result":{"callFrames":[],"stackChanged":false}}

There's apparently no exception.