• OS : Windows 10
• Python Version : 3.9.6
• Gooey Version : 1.0.8.1
• Thorough description of problem
  • Expected Behavior
  • Actual Behavior

List initial values for text inputs with nargs don't get caught by the argparse_to_json.textinput_with_nargs_and_list_default condition, and so aren't properly transformed. I would expect initial_values to be handled in the same way as default values.

• A minimal code example -- preferably copy/pastable in the issue itself (less time figuring out how to run your code == more time debugging!)

import gooey
from gooey import Gooey


@Gooey
def main():
    parser = gooey.GooeyParser(description='Sum some integers.')
    parser.add_argument('--integers', type=int, nargs='+', default=[2, 2])
    parser.add_argument('--integers2', type=int, nargs='+', gooey_options={'initial_value': [2, 2]})
    args = parser.parse_args()
    print(sum(args.integers) + sum(args.integers2))


main()

• Screenshot (if visual quirk)