[m.0] Updates visibility of hidden masks on reopening project ()

Merging branch 'm.0'  into 'main'.

See merge request !2851

GUI/View/Scene/MaskGraphicsScene.cpp

@@ -405,10 +405,11 @@ IOverlay* MaskGraphicsScene::registerOverlay(OverlayItem* item, bool is_projecti
     connect(item, &OverlayItem::maskGeometryChanged, overlay, &IOverlay::onGeometryChange,
             Qt::UniqueConnection);
     if (auto* mask_item = dynamic_cast<MaskItem*>(item)) {
-        if (auto* mask_overlay = dynamic_cast<IMaskOverlay*>(overlay))
+        if (auto* mask_overlay = dynamic_cast<IMaskOverlay*>(overlay)) {
+            mask_overlay->setVisible(mask_item->isVisible());
             connect(mask_item, &OverlayItem::maskVisibilityChanged, mask_overlay,
                     &IMaskOverlay::onVisibilityChange, Qt::UniqueConnection);
-        else
+        } else
             ASSERT_NEVER;
     }