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avoid index out of slice range
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@ -208,7 +208,7 @@ func (s *SingleChunkCacher) readChunkAt(buf []byte, offset int64) (int, error) {
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return 0, s.err
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return 0, s.err
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}
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}
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if len(s.data) == 0 {
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if len(s.data) <= int(offset) {
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return 0, nil
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return 0, nil
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}
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}
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