StateNotifierProvider.value doesn't handle LocatorMixin

[jaumard]

Describe the bug
By using this:

StateNotifierProvider<BalanceStore, BalanceState>(create: (_) => BalanceStore()),

I can use read methods of locatorMixin.

But using:

StateNotifierProvider<BalanceStore, BalanceState>.value(balanceStore),

Then read crash with not found dependency.

By reading the source look like one is setting (value as LocatorMixin)..read = _contextToLocator(context) but it is not done on the other case.