Submitted by [Jmukesh](https://twitter.com/MukeshJeth), also found by 0xRajeev, maplesyrup (heiho1 and thisguy__), and cmichel_
The constructor of RCorderbook.sol lacks zero address validation, since parameter of constructor are used initialize state variable which are used in other functions of the contract, error in these state variable can lead to redeployment of contract.
Recommend adding a required condition to check for zero address.
Splidge (Reality Cards) confirmed:
Splidge (Reality Cards) resolved:
