minor; adding check

source/armarx/view_selection/statecharts/ViewSelectionGroup/CreateTaskLevelGazeTarget.cpp

@@ -50,6 +50,7 @@ namespace armarx::view_selection::statecharts::view_selection_group
         ARMARX_CHECK_GREATER_EQUAL(in.getpriority(), 0);
         ARMARX_CHECK_GREATER_EQUAL(in.getdurationMs(), 0);
 
+        ARMARX_CHECK_NOT_NULL(in.gettarget());
 
         armem::client::MemoryNameSystem mns(getMemoryNameSystem());
         client::ViewSelection viewSelection(mns, CreateTaskLevelGazeTarget::GetName());