disable state loading for elements deemed dangerous

affects open docks/viewports, selected false coloring
temporary action until new data handling is incorporated
see #34

gui/controller/controller_docks.cpp

@@ -53,8 +53,9 @@ void Controller::initDocks()
 #endif
 	roiDock->raise();
 	// restore dock widget positions
-	mainWindow()->restoreState(
-				settings.value("mainWindow/windowState").toByteArray());
+	if (false) /* TODO: disabled to avoid crashes */
+		mainWindow()->restoreState(
+		            settings.value("mainWindow/windowState").toByteArray());
 
 	imageModel()->computeFullRgb();
 }

gui/controller/distviewcontroller.cpp

@@ -46,7 +46,7 @@ void DistViewController::init()
 	// NOTE that we did not connect signals yet! This is actually good as we
 	// will not get stray signals before the content is ready.
 	QSettings settings;
-	if (settings.contains("viewports/IMGfolded")) {
+	if (false && settings.contains("viewports/IMGfolded")) { /* TODO: disabled to avoid crashes */
 		// settings are available
 		QString activeStr = settings.value("viewports/active").value<QString>();
 		activeView = representation::fromStr(activeStr);

gui/docks/falsecolordock.cpp

@@ -386,7 +386,11 @@ void FalseColorDock::restoreState()
 	auto selectedColoring = settings.value("FalseColorDock/selectedColoringIndex", 0);
 
 	QComboBox *src = uisel->sourceBox;
-	src->setCurrentIndex(selectedColoring.toInt());
+	/* TODO: disabled to avoid crashes */
+	if (false)
+		src->setCurrentIndex(selectedColoring.toInt());
+	else
+		src->setCurrentIndex(0);
 	processSelectedColoring();
 
 	// TODO: state of spectral distance map