In 2019, using version 7.9.9 this is still an issue.
Am I missing something? This behavior is very annoying. I have to re-expand the Project Browser tree almost every time I save. It looks like this has been going on since 2010.
Also, If i change the window size when editing a script, then work on something else then come back to the script, the window size is back to small. is there a setting for this?