[Pharo-dev] important bug, needs review (15607 can not browse version containing non-ascii characters)

15607 <https://pharo.fogbugz.com/default.asp?15607> Trying to browse "versions" on a method which contains non-ascii characters causes SubscriptOutOfBounds error (not my bug, not my solution, but is important and needs a review) This is about ]lang[ tag in sources/changes file and reading nextChunks from a MultiByteFileStream