Bug 338707 Reconciler chokes on elements under parents that have been removed from the model
tests/org.eclipse.e4.ui.tests/src/org/eclipse/e4/ui/tests/reconciler/ModelReconcilerScenarioTest.java
public void testApplication_Commands_MultiLevelKeyBindings_StringEmpty_StringStringUnchanged() {
		testApplication_Commands_MultiLevelKeyBindings("Ctrl+S", "", "Ctrl+S",
				"Ctrl+S");
	}
	public void testApplication_Commands_MultiLevelKeyBindings_StringEmpty_StringStringChanged() {
		testApplication_Commands_MultiLevelKeyBindings("Ctrl+S", "", "Ctrl+S",
				"Ctrl+D");
	}
	public void testApplication_Commands_MultiLevelKeyBindings_StringStringUnchanged_NullNull() {
		testApplication_Commands_MultiLevelKeyBindings("Ctrl+S", "Ctrl+S",
				null, null);
	}
	public void testApplication_Commands_MultiLevelKeyBindings_StringStringUnchanged_NullEmpty() {
		testApplication_Commands_MultiLevelKeyBindings("Ctrl+S", "Ctrl+S",
				null, "");
	}
	public void testApplication_Commands_MultiLevelKeyBindings_StringStringUnchanged_NullString() {
		testApplication_Commands_MultiLevelKeyBindings("Ctrl+S", "Ctrl+S",
				null, "Ctrl+S");
	}
	public void testApplication_Commands_MultiLevelKeyBindings_StringStringUnchanged_EmptyNull() {
		testApplication_Commands_MultiLevelKeyBindings("Ctrl+S", "Ctrl+S", "",
				null);
	}
	public void testApplication_Commands_MultiLevelKeyBindings_StringStringUnchanged_EmptyEmpty() {
		testApplication_Commands_MultiLevelKeyBindings("Ctrl+S", "Ctrl+S", "",
				"");
	}
	public void testApplication_Commands_MultiLevelKeyBindings_StringStringUnchanged_EmptyString() {
		testApplication_Commands_MultiLevelKeyBindings("Ctrl+S", "Ctrl+S", "",