DrawNode invalidation without framebuffer redraw

Framebuffer redraw now needs to be explicitly requested
by calling ForceRedraw() on the BufferedContainer when its cached.
It is also automatically triggered when the source of
Invalidation.DrawNode is a child.

osu.Framework/Graphics/Containers/BufferedContainer.cs

@@ -117,7 +117,7 @@ public ColourInfo EffectColour
                     return;
 
                 effectColour = value;
-                Invalidate(Invalidation.DrawNode);
+                ForceRedraw();
             }
         }
 
@@ -137,7 +137,7 @@ public BlendingParameters EffectBlending
                     return;
 
                 effectBlending = value;
-                Invalidate(Invalidation.DrawNode);
+                ForceRedraw();
             }
         }
 
@@ -156,7 +156,7 @@ public EffectPlacement EffectPlacement
                     return;
 
                 effectPlacement = value;
-                Invalidate(Invalidation.DrawNode);
+                ForceRedraw();
             }
         }
 
@@ -223,7 +223,11 @@ public bool RedrawOnScale
         /// Forces a redraw of the framebuffer before it is blitted the next time.
         /// Only relevant if <see cref="UsingCachedFrameBuffer"/> is true.
         /// </summary>
-        public void ForceRedraw() => Invalidate(Invalidation.DrawNode);
+        public void ForceRedraw()
+        {
+            ++updateVersion;
+            Invalidate(Invalidation.DrawNode);
+        }
 
         /// <summary>
         /// In order to signal the draw thread to re-draw the buffered container we version it.
@@ -293,7 +297,11 @@ protected override bool OnInvalidate(Invalidation invalidation, InvalidationSour
 
             if ((invalidation & Invalidation.DrawNode) > 0)
             {
-                ++updateVersion;
+                if (source == InvalidationSource.Child)
+                {
+                    ++updateVersion;
+                }
+
                 result = true;
             }