XY event flag 50: beat chatelaine enabled on new savegame?

[suloku]

I made a new XY savegame and played a little (got to first town and saved in pokemon center) and opened it with pkhex and noticed the flag "50: beat chatelaine" is enabled.

Then I got a previous save from this same gameplay (just after getting pokedex and being able to save) and the flag is off.

Maybe it's wrong, maybe it's the default state until reaching battle mansion, maybe it is used for seomthing else, but I'm a little confused about this flag. I haven't used pkhex or pokemon bank on these two savegames I've checked.

[Kaphotics]

The game toggles flags to progress the story; you shouldn't worry about individual flags unless you have started or are beyond that part of the story.

[suloku]

So does the game re-use flags? I was surprised a flag related to battle maison was set so early in the game.