fix(bmap): reset internal state before writing #331
Merged
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Before writing a new image file, we need to reset the internal state of the bmap writing algorithm. Otherwise subsequent writes do not start with a clean state. While fixing this, we also shink the state by making the number of written blocks a local variable (it can be trivially computed from the bytes written and the blocksize).
Hopefully that's the last fix for the bmap algorithm. Unfortunately all that is not easy to test, because many of the issues only show up on big and more complex images.