Index: trunk/src/org/openstreetmap/josm/gui/dialogs/RelationListDialog.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/dialogs/RelationListDialog.java	(revision 7546)
+++ trunk/src/org/openstreetmap/josm/gui/dialogs/RelationListDialog.java	(revision 7547)
@@ -68,4 +68,5 @@
 import org.openstreetmap.josm.gui.layer.Layer;
 import org.openstreetmap.josm.gui.layer.OsmDataLayer;
+import org.openstreetmap.josm.gui.util.GuiHelper;
 import org.openstreetmap.josm.gui.util.HighlightHelper;
 import org.openstreetmap.josm.gui.widgets.DisableShortcutsOnFocusGainedTextField;
@@ -173,5 +174,5 @@
         InputMapUtils.unassignCtrlShiftUpDown(displaylist, JComponent.WHEN_FOCUSED);
 
-        // Select relation on Ctrl-Enter
+        // Select relation on Enter
         InputMapUtils.addEnterAction(displaylist, selectRelationAction);
 
@@ -179,4 +180,8 @@
         displaylist.getActionMap().put("edit", editAction);
         displaylist.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, KeyEvent.CTRL_MASK), "edit");
+
+        // Do not hide copy action because of default JList override (fix #9815)
+        displaylist.getActionMap().put("copy", Main.main.menu.copy);
+        displaylist.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_C, GuiHelper.getMenuShortcutKeyMaskEx()), "copy");
 
         updateActionsRelationLists();