Automatic Port Forwarding stopped working on JetBrains EAP IDEs

[felladrin]

Bug description

Automatic Port Forwarding stopped working on JetBrains EAP IDEs.

Steps to reproduce

1. Start a workspace from https://github.com/gitpod-io/empty using the Latest IntelliJ IDEA
2. Open a new terminal and check that when running python3 -m http.server 2593 it doesn't automatically forwards the server port, so we're unable to access the server via http://127.0.0.1:2593/
   

Workspace affected

All workspaces running with JetBrians EAP IDE.

Expected behavior

It should automatically forward any port from servers running on terminals.