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rewind added to DataClone to fix bug of different length of data #489

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4 changes: 4 additions & 0 deletions backtrader/feed.py
Original file line number Diff line number Diff line change
Expand Up @@ -811,3 +811,7 @@ def _load(self):
def advance(self, size=1, datamaster=None, ticks=True):
self._dlen += size
super(DataClone, self).advance(size, datamaster, ticks=ticks)

def rewind(self, size=1):
self._dlen -= size
super(DataClone, self).rewind(size)