/ crystal Public
Fix: IO::FileDescriptor#seek from current position #4558
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Trying to seek from the current position failed because the system position of a buffered IO is different from the actual position in Crystal land. For example reading 4 bytes from a File actually reads up to BUFFER_SIZE bytes. Seeking back 4 bytes should return to position
0, but since the system read more bytes, it ended up at an unexpected place.