view .arcconfig @ 34147:b96cfc309ac5

revlog: refactor chain variable

Previously the addgroup loop would set chain to be the result of
self._addrevision(node,...). Since _addrevision now always returns the passed in
node, we can drop that behavior and just always set chain = node in the loop.

This will be useful in a future patch where we refactor the cg.deltachunk logic
to another function and therefore chain disappears entirely from this function.

Differential Revision: https://phab.mercurial-scm.org/D699

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