Fix crash with opening grids that are not connected (grid.getController() will be null and the synchronized stmt will fail)

src/main/java/refinedstorage/gui/GuiGrid.java

@@ -112,7 +112,7 @@ public class GuiGrid extends GuiBase {
     public void drawForeground(int mouseX, int mouseY) {
         scrollbar.update(this, mouseX, mouseY);
 
-        synchronized (grid.getController()) {
+
         drawString(7, 7, t("gui.refinedstorage:grid"));
 
         if (grid.getType() == EnumGridType.CRAFTING) {
@@ -158,7 +158,7 @@ public class GuiGrid extends GuiBase {
                     text = String.valueOf(qty);
                 }
 
-                    if (hoveringSlotId == slot && GuiScreen.isShiftKeyDown()) {
+                if (hoveringSlotId == slot && GuiScreen.isShiftKeyDown() && qty > 1) {
                     text = String.valueOf(qty);
                 }
 
@@ -197,7 +197,6 @@ public class GuiGrid extends GuiBase {
             drawTooltip(mouseX, mouseY, t("misc.refinedstorage:clear"));
         }
     }
-    }
 
     public List<StorageItem> getItems() {
         List<StorageItem> items = new ArrayList<StorageItem>();
@@ -206,6 +205,7 @@ public class GuiGrid extends GuiBase {
             return items;
         }
 
+        synchronized (grid.getController()) {
             items.addAll(grid.getController().getItems());
 
             if (!searchField.getText().trim().isEmpty()) {
@@ -254,6 +254,7 @@ public class GuiGrid extends GuiBase {
 
             return items;
         }
+    }
 
     @Override
     public void mouseClicked(int mouseX, int mouseY, int clickedButton) throws IOException {