Just started a new game and went ahead with my colonization business when suddenly I saw something that made me almost fall from my chair:

The Paulos, a minor race, had a colony ship! And it was heading straight towards the secondary planet in my home system (which I never colonize right away)! At first I thought that maybe it had just a messed-up ship name, but no:

Of course I could have grabbed the planet they were heading for, but I wanted to know if they would really colonize it - so I let them proceed. And sure enough, a few turns later:

Unfortunately I do not know if they had the ship right from the start or if they build it.
Has anyone experienced this behaviour of a minor race before? This happened in Dark Avatar 1.6, no mods installed, huge galaxy, masochistic difficulty, maximum number of major and minor races.