Mutation bug in SimCurveCryptoPool

[chanhosuh]

Version Information

all versions

What's your issue about?

Please include information like:

SimCurveCryptoPool has a mutation bug in prepare_for_run:

self.last_prices = initial_prices
self.price_scale = initial_prices
self._price_oracle = initial_prices

Assigning the same object to these independent state variables will cause issues when one state variable is updated.

How can it be fixed?

self.last_prices = initial_prices.copy()
self.price_scale = initial_prices.copy()
self._price_oracle = initial_prices.copy()