Import of multiple columns from CSV to lists not possible in 3.0

[t-karcher]

Expected Behavior

When importing a CSV file with multiple columns into a list variable, Scratch will open an input box asking for the column to be imported. Leaving this input value blank should import all columns (the whole line) as described in the documentation (and as it was working in 2.0).

Actual Behavior

Import of single columns works as expected. Leaving the value blank (the documented way to import all columns as a string) will create an empty list and not import anything.

Steps to Reproduce

• Create a new list variable
• Open the list context menu to import data
• Select a csv file with at least two comma separated columns
• Do not enter anything when asked for the column to import
• The list will be cleared / nothing will be imported

Operating System and Browser

Windows 10 w/ Firefox 66