The LandManager contract lacks a mechanism to revoke or reset token approvals after they are granted. This could potentially allow the contract to stake Munchables without the current intent of the token owner, if they forget to revoke approvals directly through the MunchNFT contract. 
In the stakeMunchable function of the LandManager contract, theres a check for token approval:
https://github.com/code-423n4/2024-07-munchables/blob/94cf468aaabf526b7a8319f7eba34014ccebe7b9/src/managers/LandManager.sol#L148-L151
This check allows the staking operation to proceed if either a blanket approval for all tokens or a specific token approval is in place. However, there are two key issues:
For example, if a user grants approval and then later wants to revoke it, they must do so through the MunchNFT contract directly. If they forget to do this, the LandManager contract will still consider itself approved for future staking operations.
Consider implementing a function in the LandManager that allows users to revoke approvals for their tokens, which would interact with the MunchNFT contract to remove the approvals.
Also, before each staking operation, add a fresh approval check by calling the MunchNFT contract directly, rather than relying on potentially outdated approval states. Or consider implementing an approval expiration mechanism, where approvals granted to the LandManager contract automatically expire after a certain period or after specific conditions are met (e.g., after unstaking).
