User materials and spawned pipe walls missing in restart inputs.

[WDunsford]

When a restart case is opened graphically and exported as a full TRACE ASCI input, the following two issues have been identified:

1. If the base model contains user materials, the number of materials (nmat) is incorrectly written.
2. if the base model contains pipe walls with a variable radial mesh, then the spawned pipe wall component is missing in the restart case input.

These issues are demonstrated in the attached case. Steps to reproduce:

1. Export the base model as an ASCII input
2. Open the restart case graphically
3. Export the restart model as an ASCII input
4. Use a text diff tool to compare the inputs. There are unexpected differences.

[WDunsford]

This issue was migrated from the SNAP Issue Reporting tool. The data file has been withheld in case it contained proprietary information.