Piston is a utility that eases vendor branch management. This repository is a complete reimplementation of Piston to provide different backends, depending on the repositories and working copies you pistonize from.
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After an upgrade from 1+ to 2+ piston couldn't update the pistonized folder anymore. Piston told me that the checked out revision n is not the wanted revision n. I checked the sources and unit tests and noticed a comparison between int and str. Therefor I create a fork, updated the unit test to expect a str instead of an int and fixed the svn/revision.rb.