Avoid a segfault while editing a ruler. This happens is both a selection and a transient selection is active.

src/ant/ant/antObject.cc

@@ -133,6 +133,12 @@ Object::Object (const ant::Object &d)
   //  .. nothing else ..
 }
 
+Object::~Object ()
+{
+  //  .. nothing yet ..
+}
+
+
 Object &
 Object::operator= (const ant::Object &d)
 {

src/ant/ant/antObject.h

@@ -137,6 +137,11 @@ public:
    */
   Object &operator= (const ant::Object &d);
 
+  /**
+   *  @brief Destructor
+   */
+  ~Object ();
+
   /**
    *  @brief Less operator
    */

src/ant/ant/antService.cc

@@ -1009,6 +1009,7 @@ View::ruler (const ant::Object *r)
 void 
 View::render (const lay::Viewport &vp, lay::ViewObjectCanvas &canvas) 
 { 
+  //  .. nothing yet ..
   if (! mp_ruler) {
     return;
   }
@@ -1700,6 +1701,7 @@ Service::end_move (const db::DPoint &, lay::angle_constraint_type)
 void
 Service::selection_to_view ()
 {
+  clear_transient_selection ();
   annotation_selection_changed_event ();
 
   //  the selection objects need to be recreated since we destroyed the old rulers

src/laybasic/laybasic/layAnnotationShapes.cc

@@ -195,7 +195,7 @@ AnnotationShapes::replace (iterator pos, const shape_type &&sh)
       manager ()->queue (this, new AnnotationLayerOp (true /*insert*/, sh));
     }
     invalidate_state ();  //  HINT: must come before the change is done!
-    m_layer.replace (pos, sh);
+    m_layer.replace (pos, std::move (sh));
   }
   return *pos;
 }