patch suggestion fro invalidateAll in new map (c:geo)

tmp.diff

diff --git a/main/src/cgeo/geocaching/maps/mapsforge/v6/caches/AbstractCachesOverlay.java b/main/src/cgeo/geocaching/maps/mapsforge/v6/caches/AbstractCachesOverlay.java
index fef98dc0f..4df04d697 100644
--- a/main/src/cgeo/geocaching/maps/mapsforge/v6/caches/AbstractCachesOverlay.java
+++ b/main/src/cgeo/geocaching/maps/mapsforge/v6/caches/AbstractCachesOverlay.java
@@ -96,6 +96,11 @@ public abstract class AbstractCachesOverlay {
         invalidate();
     }
 
+    public void invalidateAll() {
+        removeItems(getGeocodes());
+        invalidate();
+    }
+
     protected boolean isInvalidated() {
         return invalidated;
     }
diff --git a/main/src/cgeo/geocaching/maps/mapsforge/v6/caches/CachesBundle.java b/main/src/cgeo/geocaching/maps/mapsforge/v6/caches/CachesBundle.java
index dc8c30340..0baeb0b48 100644
--- a/main/src/cgeo/geocaching/maps/mapsforge/v6/caches/CachesBundle.java
+++ b/main/src/cgeo/geocaching/maps/mapsforge/v6/caches/CachesBundle.java
@@ -213,6 +213,22 @@ public class CachesBundle {
         }
     }
 
+    /**
+     * Forces redraw of all cache layers (e.g. for icon change)
+     */
+    public void invalidateAll()
+    {
+        if (baseOverlay != null) {
+            baseOverlay.invalidateAll();
+        }
+        if (storedOverlay != null) {
+            storedOverlay.invalidateAll();
+        }
+        if (liveOverlay != null) {
+            liveOverlay.invalidateAll();
+        }
+    }
+
     public boolean isDownloading() {
         return liveOverlay != null && liveOverlay.isDownloading();
     }
diff --git a/main/src/cgeo/geocaching/maps/mapsforge/v6/caches/CachesOverlay.java b/main/src/cgeo/geocaching/maps/mapsforge/v6/caches/CachesOverlay.java
index 9227a1553..91367c6b5 100644
--- a/main/src/cgeo/geocaching/maps/mapsforge/v6/caches/CachesOverlay.java
+++ b/main/src/cgeo/geocaching/maps/mapsforge/v6/caches/CachesOverlay.java
@@ -104,6 +104,13 @@ public class CachesOverlay extends AbstractCachesOverlay {
         }
     }
 
+    @Override
+    public void invalidate() {
+        firstRun = true;
+
+        super.invalidate();
+    }
+
     @Override
     public void onDestroy() {
         timer.dispose();