workaround for MoveIt PlanningScene bug

moveit/moveit#1835

Author: rhaschke

capabilities/src/execute_task_solution_capability.cpp

@@ -173,7 +173,12 @@ bool ExecuteTaskSolutionCapability::constructMotionPlan(const moveit_task_constr
 			if (!planning_scene::PlanningScene::isEmpty(sub_traj.scene_diff)) {
 #endif
 				ROS_DEBUG_STREAM_NAMED("ExecuteTaskSolution", "apply effect of " << description);
-				return context_->planning_scene_monitor_->newPlanningSceneMessage(sub_traj.scene_diff);
+				bool result = context_->planning_scene_monitor_->newPlanningSceneMessage(sub_traj.scene_diff);
+#if MOVEIT_MASTER
+				// HACK: workaround for https://github.com/ros-planning/moveit/issues/1835
+				ros::Duration(0.1).sleep();
+#endif
+				return result;
 			}
 			return true;
 		};