Fix crash caused by a9a0d0fb15cc5e028dbf8dab8b46d3dc197c4678

platform/osx/os_osx.mm

@@ -1599,6 +1599,7 @@ void OS_OSX::finalize() {
 	memdelete(joypad_osx);
 	memdelete(input);
 
+	cursors_cache.clear();
 	visual_server->finish();
 	memdelete(visual_server);
 	//memdelete(rasterizer);

platform/windows/os_windows.cpp

@@ -1537,6 +1537,7 @@ void OS_Windows::finalize() {
 	memdelete(camera_server);
 	touch_state.clear();
 
+	cursors_cache.clear();
 	visual_server->finish();
 	memdelete(visual_server);
 #ifdef OPENGL_ENABLED

platform/x11/os_x11.cpp

@@ -788,6 +788,7 @@ void OS_X11::finalize() {
 
 	memdelete(camera_server);
 
+	cursors_cache.clear();
 	visual_server->finish();
 	memdelete(visual_server);
 	//memdelete(rasterizer);