context: remove seemingly impossible code branch I'm not a Python expert, but I can't think of a way that the following branch can ever be hit: def _changeid(self): if r'_changeid' in self.__dict__: return self._changeid It seems to me that if that condition is true, then this function would not have been called. The only exception I can think of is if a reference to the function had been stored beforehand, something like this: c = fctx.__dict__['_changeid'] fctx._changeid c() But that seems like very unlikely code to exist. The condition was added in 921b64e1f7b9 (filecontext: use 'is not None' to check for filelog existence, 2013-05-01) as a "bonus" change (in addition to what the patch was actually about) Differential Revision: https://phab.mercurial-scm.org/D5289

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