Whitespace at beginning of line doesn't display properly in Interactive

[louisabraham]

Environment data

• VS Code version: 1.30.1
• Extension version (available under the Extensions sidebar): 2018.12.1
• OS and version: macOS 10.12.6
• Python version (& distribution if applicable, e.g. Anaconda): 3.6.7
• Type of virtual environment used (N/A | venv | virtualenv | conda | ...): conda

Actual behaviour

This code doesn't print any whitespace before the text.
But on the next lines they show properly.
At first this occurred to me in a more complicated example, but I couldn't make
a minimal example where the problem happens on another line than the first.

print("\tabc")