Python scripts not saving in ows file

[chadlaurent]

Orange version

3.19 on Windows 10

Expected behavior

Python script object changes should save with project.

Actual behavior

After saving project with python script and closing Orange, the next time I open the project the python script is back to the default "Hello World" example instead of my saved script.

Steps to reproduce the behavior

1. Create new project with python script object
2. Modify the python script to something other than Hello World
3. Save the project
4. Close orange
5. Re-open Orange
6. Open the project
7. The python script reverts to Hello World

Additional info (worksheets, data, screenshots, ...)

[markotoplak]

We aim to solve this with #3529.

Until then, you the script will save if you click the Update button after writing it.