Incorrect success value returned in vyper

Background During the audit of Lido's Gate Seals code statemind team identified a weird behavior of the code that uses rawcall: https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vyL164 . Construction like this: vyper success = rawcall...