gazebo doesn't stop on sigint, needs sigkill

[fjulian]

ROS melodic
Ubuntu 18.04

When launching gazebo using the command roslaunch gazebo_ros empty_world.launch, everything works as expected. However, when trying to stop gazebo using Ctrl-C in the same terminal, the following output occurs:

^C[gazebo_gui-2] killing on exit
[gazebo-1] killing on exit
[gazebo_gui-2] escalating to SIGTERM
shutting down processing monitor...
... shutting down processing monitor complete
done

Unfortunately, before escalating to SIGTERM, roslaunch waits for 10 seconds. A workaround would be to change that timeout (see for example here), however this doesn't seem like a clean solution.
Does anyone know why this is happening and how the node could be modified to respect SIGINT?

[musamarcusso]

It has been an issue for a while now #751

[j-rivero]

Musa is right, lets follow in #751

[pr-db]

Hello, I am quite new to Gazebo, and I ran into something like this ([gazebo_gui-3] escalating to SIGTERM) today. I don't know why I got this, can you guide me to a solution?