accrueInterest() before setting new rateModel #206
Merged
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The latest interest should be accrued using the old
rateModel
before updating to the new one.One other thing -- previously, if accrued interest was causing the safe casts in
_save
to revert, governance could un-brick the contract by setting a newrateModel
that returns 0. After this change, that wouldn't be possible, becausesetRateModelAndReserveFactor
itself would revert. We eliminate the problem by clampingborrowIndex
andtotalSupply
to their maximum values in_previewInterest
.Addresses