=== modified file 'common/draw_panel.cpp'
--- common/draw_panel.cpp	2016-06-17 17:58:14 +0000
+++ common/draw_panel.cpp	2016-07-31 18:37:36 +0000
@@ -885,6 +885,17 @@
     pos = event.GetPosition();
     m_ignoreMouseEvents = true;
     PopupMenu( &MasterMenu, pos );
+    // here, we are waiting for popup menu closing.
+    // Among different ways, it can be closed by clicking on the left mouse button.
+    // The expected behavior is to move the mouse cursor to its initial
+    // location, where the right click was made.
+    // However there is a case where the move cursor does not work as expected:
+    // when the user left clicks on the caption frame: the entire window is moved.
+    // Calling wxSafeYield avoid this behavior because it allows the left click
+    // to be proceeded before moving the mouse
+    wxSafeYield();
+
+    // Move the mouse cursor to its initial position:
     MoveCursorToCrossHair();
     m_ignoreMouseEvents = false;