Tabby does not preserve tabs in terminal output

[et304383]

Describe the problem:
If I putput tabs from a script (as I want to copy/paste the output into a spreadsheet) tabby replaces the tabs with spaces. iterm2 does not do this.

If I gobble the output from the script into a copy to clipboard command, the tabs are preserved, so this is definitely related to output going to the terminal that I then select and copy.

To Reproduce:
echo -e 'Field1\tField2'

Tabby outputs:

Field1    Field2

The tab is replaced with spaces.