One instance per contract function call #326
Merged
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Changes the instance reclamation code to allow for exactly one module instance per contract function call. This changes the way in which the node processes the state, leading to diverging state roots on errorring calls.
Simplifies the instance code by using a boolean to appropriately drop the instance. This allows the data in the struct to be passed around the
Env
, whilst fixing some bad dereferences previously occurring under certain situations.Resolves: #325