ID 446363 - Node undo/redo/reset knobs are disabled when making adjustments with a Shuffle2 node upstream.

Problem summary
Node undo/redo/reset knobs are disabled when making adjustments with a Shuffle2 node upstream.

Customer reported version
nuke.12.1v2

Customer reported platform
windows10

Steps to reproduce

1) From Nuke, create a Shuffle2 node.

2) Create a Grade node under the Shuffle2, then make adjustments observing the Undo feature.

Expected behavior
The Undo button should be enabled after making adjustments within the Properties bin of any nodes under the Shuffle2 node.

Actual behavior
The Undo/Redo/Reset knobs are disabled for any nodes after a Shuffle2 node. However, the Ctrl/CMD+Z function still works from the Edit menu.

Workaround
The issue does not occur when using Update All and adding a regular Shuffle node.

Reproduced by Support in

Nuke 12.2v2 - Windows 10, macOS 10.14

Nuke 12.2.v1 - Windows 10, macOS 10.14

Nuke 12.1v2 - Windows 10, macOS 10.14

Nuke 12.1v1 - Windows 10, macOS 10.14

Unable to reproduce bug in:
Nuke 12.0v6 - Windows 10, macOS 10.14

Earliest version tested
Nuke 12.0v6 - This feature did not exist before this version (Shuffle2 node)