The following scenarios reproduce the problem.

CASE A:
1) Create simple virtual table (VTableA) dependent on a simple source table (STableA). Insure validation OK
2) Clone a column in STableA and save source model
3) Errors should result in source model
4) NO errors in virtual model

CASE B:
1) Create simple virtual table (VTableA) dependent on a simple source table (STableA). Insure validation OK
2) Create a New valid column in STableA and save source model
3) No errors should result in the source model
4) No errors in the virtual model

The resulting state of BOTH of these cases should be Virtual tables that have "reconcile" errors in the transformation.

Indexes for models that depend on the "source" model should be deleted and the dependent models re-built if Auto-Build is ON

Probably should be wired to our current "build" framework so a dependency check is always performed if Auto-Build is ON