Update background texture if a new one is empty (regression #4986)

apps/openmw/mwgui/itemwidget.cpp

@@ -148,9 +148,9 @@ namespace MWGui
         if (backgroundTex != "")
             backgroundTex += ".dds";
 
+        float scale = 1.f;
         if (!backgroundTex.empty())
         {
-            float scale = 1.f;
             auto found = mScales.find(backgroundTex);
             if (found == mScales.end())
             {
@@ -165,12 +165,12 @@ namespace MWGui
             }
             else
                 scale = found->second;
+        }
 
         if (state == Barter && !isMagic)
             setFrame(backgroundTex, MyGUI::IntCoord(2*scale,2*scale,44*scale,44*scale));
         else
             setFrame(backgroundTex, MyGUI::IntCoord(0,0,44*scale,44*scale));
-        }
 
         setIcon(ptr);
     }