function rebuildCache() in MixinOperatorResolver does not delete removed operators from operatorCache

This issue has been created to upgrade a QA report submission to a medium severity finding. From pauliax: function rebuildCache in MixinOperatorResolver does not delete removed operators from operatorCache. resolverOperatorsRequired return current active operators, so it will not contain removed...

Wrong rebuild cache logic

Lines of code Vulnerability details Impact Currently, many core operations like NestedFactory.create, NestedFactory.swapTokenForTokens are dependent on the assumption that the cache is well synced before these functions are executed however this may not necessarily be the case. Proof of Concept T...