Double-spawn bug on loading saved game

[Keeper]

Not sure if you're aware, but I noticed after a few times saving a game and re-loading while in the same system that game performance was dropping. I've discovered that the game acts as though you've entered the system for the first time when you load a saved game, thus spawns new ships, doubling the amount of traffic in the system. So if you stay in one system for a few saves, things get very busy indeed.

For example, here I started a new game and took a screenshot of the traffic once it settled down after 30 seconds:
http://www.keeper1st.com/pioneer/203541.png

Then I saved the game and re-loaded it. Letting it settle for 30 seconds, note there's now twice as much traffic:
http://www.keeper1st.com/pioneer/203609.png

This continues with each load.

Perhaps this was fixed in a recent update; I'm running the current pre-compiled build from October. I haven't tried figuring out how to compile it from the latest files myself yet.

[impaktor]

It's even worse, as ship position in that orbit view is not correct, due to bug that remains to be found.

I've opened a bugreport on it here:
https://github.com/pioneerspacesim/pioneer/issues/4273