Graph View: Fixed warning (Fixes #875)
Graph View: Fixed warning (Fixes #875)

sutherlandm/apm_planner,kellyschrock/apm_planner,sutherlandm/apm_planner,kellyschrock/apm_planner,mirkix/apm_planner,diydrones/apm_planner,diydrones/apm_planner,kellyschrock/apm_planner,xros/apm_planner,mirkix/apm_planner,dcarpy/apm_planner,mirkix/apm_planner,dcarpy/apm_planner,diydrones/apm_planner,sutherlandm/apm_planner,xros/apm_planner,kellyschrock/apm_planner,diydrones/apm_planner,diydrones/apm_planner,xros/apm_planner,mirkix/apm_planner,sutherlandm/apm_planner,mirkix/apm_planner,xros/apm_planner,xros/apm_planner,sutherlandm/apm_planner,dcarpy/apm_planner,diydrones/apm_planner,xros/apm_planner,dcarpy/apm_planner,dcarpy/apm_planner,mirkix/apm_planner,dcarpy/apm_planner,kellyschrock/apm_planner,sutherlandm/apm_planner,kellyschrock/apm_planner