Slider: Ensure that current Value is always treated as a double

modules/juce_gui_basics/widgets/juce_Slider.cpp

@@ -191,9 +191,10 @@ public:
 
             lastCurrentValue = newValue;
 
-            // (need to do this comparison because the Value will use equalsWithSameType to compare
-            // the new and old values, so will generate unwanted change events if the type changes)
-            if (currentValue != newValue)
+            // Need to do this comparison because the Value will use equalsWithSameType to compare
+            // the new and old values, so will generate unwanted change events if the type changes.
+            // Cast to double before comparing, to prevent comparing as another type (e.g. String).
+            if (static_cast<double> (currentValue.getValue()) != newValue)
                 currentValue = newValue;
 
             updateText();