GOT: Wrong hammer type when loading savegame directly

[Didero]

I just loaded my God Of Thunder Part 3 savegame directly from ScummVM's game list through the 'Load...' button, and even though I should have the golden hammer, I had the basic hammer from Part 1.
The same is true for Part 2 savegames: You should have the silver hammer there, but you get the basic hammer.

If I first start a new game for Part 3, and then load my Part 3 savegame from in-game, I do have the correct hammer type.
But if I start a new Part 3 game, and then load my Part 1 or 2 savegame, I still have the golden hammer, even though I shouldn't have that yet.

I downloaded the latest daily build and retried these steps, but that didn't fix it, I still had the wrong hammer type.

So it seems the hammer type doesn't get saved or loaded correctly.

[Didero]

Savegame from Part 3 to test with