Unsign Tx and Delete PendingTx after Completion #30
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closes #8 and unsign will delete pending transactions once there are 0 signers which should close #9 & #21.
I had an issue though when deleting pending tx structs from the pending mapping. Turns out mappings cannot be easily deleted from structs. From Solidity Docs on delete operator:
Not really worth fixing for this project, but it's good to know for the future.
The only time this would be an issue is if someone were to complete a pending tx and then create the very same pending tx (with the same hash), then all the previous signers would get an error if they were to sign it again since the previous signers mapping was not cleared.