ID 509266 - Normal information is lost when object is cut and pasted.

Problem summary
Normal information is lost when object is cut and pasted.
 
Customer reported version
modo.16.0v1
 
Customer reported platform
windows11
 
Steps to reproduce
 
1) Download and open the attached Scene file.
2) Connect the Normal channel of the Curve Probe to Vector B of the Add node.
3) Ensure the Tangent field is not connected.
4) Select the Plane item and Cut the Base Mesh item and then paste it back in. Notice that the directions are all facing upwards.
Note: To get the arrows facing the correct way prior to to step 4 it sometimes required the Base Mesh on the Plane mesh item to be cut and pasted, and/or the Tangent and Normal fields to be connected and reconnected.
 
Expected behaviour
The normal information should remain intact.
 
Actual behaviour
The normal information is lost.
 
Workaround
Unknown. 
 
Reproduced by support
This bug has been reproduced in:
16.0v1 - Windows 10, macOS 10.16
15.1v1 - Windows 10, macOS 10.16
 
Earliest version tested
15.1v1 - This feature did not exist before this version.