Submitted by gzeon
In WrappedIbbtc, user will not be able to transfer if oracle.pricePerShare() (L124) revert. This is because balanceToShares() is called in both transfer and transferFrom, which included a call to pricePerShare().
If this is the expected behavior, note that WrappedIbbtcEth is behaving the opposite as it uses the cached value in a local variable pricePerShare, which is only updated upon call to updatePricePerShare().
Depending on the specification, one of them need to be changed.
dapp-whisperer (BadgerDAO) confirmed
