ID 424060 - Bake Point does not update from nested group nodes

Problem summary

Outer bake points' states should reflect changes upstream, even in nested groups.

Customer reported version
Mari 4.6v2

Customer reported platform

N/A

Steps to reproduce:

1. Create a new project with an empty Node Graph

2. Connect a Color node and Oil node to a Merge node, then connect the Merge node to a Bake Point node.
3. Group the Oil and Merge node. 
4. Bake the Bake Point - it should be green

5. Go inside the group and change the blend amount of the Merge node

Expected behaviour:

The bake point node's state should be dirty and red.

Actual behaviour:

No state change on the bake point node.

Workaround:

No known workaround.

Reproduced by support
This bug has been reproduced in:

Mari 4.6v2 - Windows 10 - CentOS7 - MacOS 10.14.6

Mari 4.6v1 - Windows 10 - CentOS7- regression

Unable to reproduce bug in:
Mari 4.5v2 - Windows 10 - CentOS7

Earliest version tested
Mari 4.5v2- This issue doesn't appear in this version and has regressed.