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Fix field_metadata.is_series_index that apparently never worked.
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@ -504,9 +504,12 @@ class FieldMetadata(dict):
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return [k for k in self._tb_cats.iterkeys() if self.is_ignorable_field(k)]
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def is_series_index(self, key):
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m = self[key]
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try:
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m = self._tb_cats[key]
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return (m['datatype'] == 'float' and key.endswith('_index') and
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key[:-6] in self)
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except:
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return False
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def key_to_label(self, key):
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if 'label' not in self._tb_cats[key]:
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