only select all rows if table is multiselect

Signed-off-by: Melanie Retter <melanie.retter@bosch-si.com>

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/common/table/AbstractTable.java

@@ -157,8 +157,10 @@ public abstract class AbstractTable<E extends NamedEntity, I> extends Table {
      * Select all rows in the table.
      */
     protected void selectAll() {
-        // only contains the ItemIds of the visible items in the table
-        setValue(getItemIds());
+        if (isMultiSelect()) {
+            // only contains the ItemIds of the visible items in the table
+            setValue(getItemIds());
+        }
     }
 
     private void setColumnProperties() {