X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.databoard%2Fsrc%2Forg%2Fsimantics%2Fdataboard%2Fbinding%2Fimpl%2FTreeSetBinding.java;h=50028b3a164914a10d1d859f4d1e1a7f724f9190;hp=304b3cad4a4dc80e0150ca86618f6f27957abf51;hb=1956b6ed85e1df65c4df58e6cb0ac6aa296e6939;hpb=969bd23cab98a79ca9101af33334000879fb60c5

diff --git a/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/impl/TreeSetBinding.java b/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/impl/TreeSetBinding.java
index 304b3cad4..50028b3a1 100644
--- a/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/impl/TreeSetBinding.java
+++ b/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/impl/TreeSetBinding.java
@@ -58,12 +58,15 @@ public class TreeSetBinding extends MapBinding {
 		return false;
 	}
 
-	@Override
-	public Object create() throws BindingException {
-		return new TreeSet<Object>( getKeyBinding() );
-	}
-
-	public Object create(Set<?> initialSet) throws BindingException {
+    @Override
+    public Object create() throws BindingException {
+        return new TreeSet<Object>( getKeyBinding() );
+    }
+
+	public Object create(Set<?> initialSet) throws BindingException {
+	    if (initialSet instanceof TreeSet && ((TreeSet<?>) initialSet).comparator() == getKeyBinding())
+	        return initialSet;
+	    
 		TreeSet<Object> result = new TreeSet<Object>(getKeyBinding());
 		result.addAll(initialSet);
 		return result;