BUG: Fix bug in DataFrame binary op not respecting fill_value in case… #60906
+28
−3
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… of MultiIndex columns
doc/source/whatsnew/vX.X.X.rst
file if fixing a bug or adding a new feature.When
fill_value
is not None, we should not reindex the dataframes, as the_arith_method_with_reindex
method doesn't handlefill_value
. Instead, we should go via the regular_flex_arith_method
route as reindexing is no longer necessary whenfill_value
is provided.Bug introduced in #60538 so not adding to whatsnew.