System Information
N/A

Blender Version
Broken: 2.83
Worked: Never?

Short description of error
When using a custom pyNode tree, setting a property to use a driver does not update that property.

Exact steps for others to reproduce the error
Requires an add-on that uses a custom pyNode tree. (You can use mine from http://dancingfortune.com/projects/BakeWrangler_1_0_RC5.zip). Open the 'Bake Node Editor' and create a new node tree. Right click on any property and 'Copy as New Driver', then right click on some other property in the node tree and 'Paste as Driver'. Changing the original property will not update the driven property. (It is also possible to modify the driven property, it generates an error message but changes the value any way)