Glowing Behemoth Crystal - first change in 1 move?

[Skunkupine]

According to the Wiki, it's supposed to take 6 in game hours for the first change from the GBC to occur - nominally enough time to get to the ship and put it in storage, right?
However, whenever my Steele picks one up, the first transformation is IMMEDIATE - as in, move one square, get mutated. Since I'm happy with what my Steele is right now, I don't want that.
Is this a bug, or is thie Behavior As Designed?

 

[Theron]

Couldn't reproduce. Upload your save?

Just to be certain, you are on 0.9.139-PUBLIC#6354?

 

[Skunkupine]

OK, here's a save right after picking up the crystal. On the next move, I get a transformation.
Yes, I am on 0.9.139-PUBLIC#6354.
(ideally the version # of the game that created a save ought to be stored in the save. Pity it isn't.)