Prompt disappears when opening truffle debug within truffle develop

[haltman-at]

Issue

When running debug from truffle develop, the prompt initially fails to appear. (It will appear after pressing enter, or after deleting any of the entered text.)

Steps to Reproduce

1. Run truffle develop.
2. Within truffle develop, run a transaction and obtain its hash.
3. Within truffle develop, run debug on the transaction hash.

Expected Behavior

After the debugger's startup messages, the debugger prompt should appear.

Actual Results

The debugger prompt does not appear until you press enter or delete some of the text you've entered.

Environment

• Operating System: Linux Mint 18.3 (64-bit)
• Ethereum client: truffle develop
• Truffle version (truffle version): 5.0.13
• node version (node --version): 10.6.0
• npm version (npm --version): 6.6.0

[eggplantzzz]

This is not an issue on the most recent Truffle (5.1.51) - someone must have fixed it.