Index: src/org/openstreetmap/josm/gui/dialogs/properties/PropertiesDialog.java
===================================================================
--- src/org/openstreetmap/josm/gui/dialogs/properties/PropertiesDialog.java	(revision 16091)
+++ src/org/openstreetmap/josm/gui/dialogs/properties/PropertiesDialog.java	(working copy)
@@ -1168,6 +1168,13 @@
         @Override
         protected final void updateEnabledState() {
             DataSet ds = OsmDataManager.getInstance().getActiveDataSet();
+            boolean b = ds != null && !ds.isLocked() &&
+                    ((tagTable != null && tagTable.getSelectedRowCount() >= 1)
+                    || (membershipTable != null && membershipTable.getSelectedRowCount() > 0)
+                    );
+            if (!b) {
+                long dd = 4;
+            }
             setEnabled(ds != null && !ds.isLocked() &&
                     ((tagTable != null && tagTable.getSelectedRowCount() >= 1)
                     || (membershipTable != null && membershipTable.getSelectedRowCount() > 0)