When adjusting the volume of a MP3 file in glue using the volume slider - multiple incrementing tasks appears leading to crashes

[mza299]

To recreate this:

1.) I dragged and dropped an MP3 file onto GameScreen/Files in glue
2.) under the song tab, I ticked “set volume” and adjusted the slider.
3.) numerous tasks appeared in glue under “task remaining”. These tasks have the same text. “Saving Glue (ASAP)”

This eventually led to crashes to the extent that , once rebooted, glue could not load the vs solution of my project.

[vchelaru]

There are a few problems here:

1. When the volume slider was changed, it would re-save the entire Glue project including all screens and entities. This is slow, and can cause a backup of tasks.
2. If a Glue project references a screen or entity json file which is empty, then that gets loaded as null, and that null element is then added to the Glue project, causing the projct to fial to load.
3. A corruption can happen when saving, wiping the contents of a json file.
4. If a file is missing or corrupt or invalid, glue should show an error so the user can react and try to fix this

I've fixed #1 and #2 which will make errors less likely, and less catastrophic. I still need to work on #3

[vchelaru]

first two issues are fixed here:

8c8df2e