// Before a change that should be deferred (see above), currently_deferring_model_changes
// must be set to true, and current_change_id must be given contents describing what's
// changed to avoid accidental grouping.
// Before a change that should be deferred (see above), currently_deferring_model_changes
// must be set to true, and current_change_id must be given contents describing what's
// changed to avoid accidental grouping.