The YieldStakingBase.sol#_repay() in sub-call to Yield.sol#yieldRepayERC20() and pass vars.nftDeb as amount.
However, in YieldLogic.sol#executeYieldRepayERC20 this checks:
In case the above IF is true, the difference in the amount will be locked. Users could lose some of their claimed yields that are saved in vars.remainAmount or will pay more extra amount that he needs vars.extraAmount.
To fix this call yieldRepayERC20(), which should return the delta amount to _repay() and update vars.remainAmount or vars.extraAmount as it suits then transfer to/from the sender.
