Eliminate duplicate cases in `validateDocument()` - duplicate cases logged upon removal - validateDocument() called when saving as well as when opening documents
Eliminate duplicate cases in `validateDocument()`
- duplicate cases logged upon removal
- validateDocument() called when saving as well as when opening documents

concord-consortium/codap,concord-consortium/codap,concord-consortium/codap,concord-consortium/codap,concord-consortium/codap