A photo restored from the session reaches the stage while /me is still in
flight, so the account reading that put it there saw `pro` as false, the place
lookup was skipped, and reloading a photo left the stamp with bare coordinates.
Naming now happens in one effect that watches the position itself: the first
moment it is on the stage unnamed and the account is PRO, it gets a name,
wherever it came from. A position typed in by hand earns its name too, and a
guest's photo is named the moment they sign in.
The two call sites that used to ask for the name — in locateMe and adoptPhoto —
are gone, since the effect covers both.
3dtours
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