Make ForeighHash inherit the default value of the referenced Hash

[Endogen]

Description

Make ForeighHash inherit the default value of the referenced Hash

Type of change

• [x] New feature (non-breaking change which adds functionality)

Checklist

• [x] I have performed a self-review of my own code
• [x] I have tested this change in my development environment.
• [ ] I have added tests to prove that this change works
• [ ] All existing tests pass after this change
• [ ] I have added / updated documentation related to this change

[Endogen]

Needs to be tested

[Endogen]

@duelingbenjos I've tested it. Works fine.