Submitted by Cosine, also found by klau5
https://github.com/code-423n4/2024-03-dittoeth/blob/91faf46078bb6fe8ce9f55bcb717e5d2d302d22e/contracts/facets/RedemptionFacet.sol#L267-L268 
https://github.com/code-423n4/2024-03-dittoeth/blob/91faf46078bb6fe8ce9f55bcb717e5d2d302d22e/contracts/libraries/AppStorage.sol#L92
When a user creates a redemption proposal with the proposeRedemption function the user has to provide a list of the short records (SRs) with the lowest collateral ratios (CR) in the system ascending.
To prevent users from creating proposals with a wrong SR list, anyone is allowed to dispute proposals with the disputeRedemption function. This function allows the disputer to prove that a SR with a lower CR was not included in the proposal and for doing so the disputer receives a penalty fee from the proposer.
If between these flows of creating a wrong proposal and disputing it a SR is closed (liquidation, exiting, transfer, ) the collateral is added to the closed SR and can not be recovered.
The following POC can be implemented in the Redemption.t.sol test file:
Opening up the SR again if its closed would be a solution, but it could probably be misused to avoid liquidations. Therefore, carefully think about the implications of changes in this context.
Context
ditto-eth (DittoETH) confirmed
