From d613530ca19459bcc8a75015ec28533968b92c2d Mon Sep 17 00:00:00 2001
From: Marko Luukkainen <marko.luukkainen@semantum.fi>
Date: Wed, 28 Oct 2020 12:10:36 +0200
Subject: [PATCH] Check for property tab contribution change.

gitlab #631

Change-Id: I08d2a156728298410639d236f5833c05d0ba0d9e
---
 .../simantics/selectionview/TabbedPropertyTable.java  | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/bundles/org.simantics.selectionview/src/org/simantics/selectionview/TabbedPropertyTable.java b/bundles/org.simantics.selectionview/src/org/simantics/selectionview/TabbedPropertyTable.java
index 70a0c573a..7f7aecd0b 100644
--- a/bundles/org.simantics.selectionview/src/org/simantics/selectionview/TabbedPropertyTable.java
+++ b/bundles/org.simantics.selectionview/src/org/simantics/selectionview/TabbedPropertyTable.java
@@ -275,15 +275,20 @@ public class TabbedPropertyTable extends Composite implements IPropertyTab {
     }
 
     protected Consumer<Collection<?>> inputCallback(final Collection<Object> selectionContents, final ISessionContext sessionContext) {
-        return new Consumer<Collection<?>>() {
+    	return new Consumer<Collection<?>>() {
+        	Collection<?> currentContribs  =null;
             @Override
             public void accept(final Collection<?> contribs) {
                 
-                if (isDisposed())
+                if (isDisposed()) {
+                	currentContribs = null;
                     return;
+                }
+                if (contribs != null && contribs.equals(currentContribs))
+                	return;
+                currentContribs = contribs;
 //                if (contribs.isEmpty())
 //                    return;
-
                 SimanticsUI.asyncExecSWT(TabbedPropertyTable.this, new Runnable() {
                     
                     public void run() {
-- 
2.43.2