ID 484478 - Procedural Assembly Selection is not retained.

Problem summary
Procedural Assembly Selection is not retained.
Customer reported version
modo.15.0v3
Customer reported platform
windows10
Steps to reproduce
1) Download and open the attached scene file.
2) Go to the Setup layout and open New Assembly (3). Notice that Select N-gon Polygons should apply a Spike effect to any N-gons that are present. Notice that no spikes are appearing as expected.
3) Go back to the parent assembly, right-click New Assembly (3) and select Save Assembly Preset. On the Warning window that appears select OK.
4) Select a destination folder and save the Assembly.
5) Add the directory where the Assembly was saved to the Preset Browser through (add path...). Then drag and drop the saved Assembly into the Schematic viewport.
6) Break the connection between the Cylinder item and New Assembly (3) and create a connection between the Cylinder item and the newly imported assembly.
7) Notice that a Spike effect is incorrectly applied to the quads on the Cylinder.
Expected behaviour
A Spike effect should not be applied to the quads on the Cylinder.
Actual behaviour
A Spike effect is applied to the quads on the Cylinder.
Workaround
Unknown.
Reproduced by support
This bug has been reproduced in:
15.0v3 - Windows 10 
15.0v1 - Windows 10
14.2v1 - Windows 10
14.1v1 - Windows 10
14.0v1 - Windows 10
13.0v1 - Windows 10
Earliest version tested
13.0v1 - This feature did not exist before this version.