> Accessing a single column of a DataFrame as a Series (e.g. df["col"]) now always returns a new object every time it is constructed when Copy-on-Write is enabl

> Accessing a single column of a DataFrame as a Series (e.g. df["col"]) now always returns a new object every time it is constructed when Copy-on-Write is enabled (not returning multiple times an identical, cached Series object). This ensures that those Series objects correctly follow the Copy-on-Write rules (GH49450) Is this going to mean I can’t do df[‘a’] = 2 to set all values in column a to 2?