'Copy Value' from Variables debugger window not working #1398

Environment data

• VS Code version: code-insider-1.23.0-1523596516_amd64
• Extension version (available under the Extensions sidebar): 2018.3.1 (29 Mar 2018)
• OS and version: Ubuntu 18.04
• Python version (& distribution if applicable, e.g. Anaconda): 2.7
• Type of virtual environment used (N/A | venv | virtualenv | conda | ...): virtualenv
• Relevant/affected Python packages and their versions: N/A

Actual behavior

When in debug mode i open contextual menu to Copy value from variable and this does not work.
Also Copy from expression and Add to Watch do not work.
Also the Debug Console stop working after i select Copy Value item.

Steps to reproduce:

1. Press F5 to start debugging session
2. Go to VARIABLES panel and rigth click to show contextual menu on a variable
3. select Copy Value

Logs

No relevant logs appear