Finally I've managed to have the nova-fun
First time I didn't even notice it. I had the fuel leak and instantly went off-lane, which turned out to be a bad decision, as a bunch of pirates attacked and destroyed me with a kamikaze move.
Second time I knew that it would trigger *now* and thus selected an obsolete anarchy system as target
As I did not want to run into another pirate ambush, I did chose the lane this time. That was pretty bad, as there were so many wormholes that it was impossible to use torus drive. I decided to "cheat" a little and use the pylon mounted tanks, but they drained away. However, the fuel collector slowly filled my tanks. Too slow, all too slow, especially as those wormholes just didn't go away, many of them were so big that they would last thousands of minutes. It was like navigating through a field of q-mine explosions.
Then I had some luck: A rock hermit buoy did show up. It launched a few pirates which tried to shoot me down, but I was able to dock and refuel. The pirates used that little spare time to flee
Interestingly, I had the possibility to do a normal jump instead of using the galactic hyperdrive to evacuate the poor anarchists. This leads to the main reason why I write this.
As a result, I was able to see the altered planet info of that system. The text does display a different system name than the planets, although the f5-info, which does list the refugees, shows the proper name!
EDIT: extended bug report for the TRUNK build
1) the system name displayed in the info text is that of the current system, not of the system which went nova
2) after jumping to the system which went nova, there's a witchdrive malfunction (OK), a sun (??????) and as soon as I hit the system info key, oolite simply closes itself. stderr and log do not contain usable info.
Screet