LT-15770: Fix Crash loading Complex Forms > Gram Info

Fix a crash when loading
Referenced Complex Forms > Grammatical Info. by not loading
special Grammatical Info. options when the selected node is not
a child of a Sense node (consistent with old Dlg.

Revert Bartholomew to a configuration that validates against the
schema (see LT-15773).

Change-Id: I9352e038451cc9acfdf999d58352a71486a0e598