ID 562005 - Nuke crashes after setting a GeoDisplace node's Source knob to "alpha"

Problem summary:
Nuke crashes after setting a GeoDisplace node's Source knob to "alpha"
 
This issue does not appear to affect the Classic 3D System node equivalents
 
Customer reported version:
Nuke 14.1v2
 
Customer reported platform:
N/A
 
Steps to reproduce:
1) Launch Nuke and create a GeoCube node in the Node Graph.
2) Create a GeoDisplace node and View it.
3) Create a CheckerBoard node, and connect it to the GeoDisplace's displace input.
4) In the GeoDisplace node's Properties, set the Source knob to "alpha" and observe Nuke's performance.
 
Expected behavior:
The GeoDisplace node should utilize the source indicated by the Source knob without issue.
 
Actual behavior:
If the GeoDisplace node's source knob has been set to "alpha", Viewing the node will cause Nuke to crash.
 
Workaround:
Instead of "alpha", use one of the other GeoDisplace sources, such as luminance, red, green, etc. 
 
Reproduced by Support in:
Nuke 15.0v2 - Windows 10, macOS 13 Ventura
Nuke 15.0v1 - Windows 10
Nuke 14.1v1 - Windows 10
Nuke 14.0v1 - Windows 10
 
Earliest version tested:
Nuke 14.0v1 - This feature (GeoDisplace/New 3D System nodes) did not exist before this version