[Bug] Economy/Macro Y10YD: Adding United_Kingdom, specifically, in a multi-country chart causes bad data, but individually are fine.

[deeleeramone]

A strange error occurs from this parameter, but only when the United_Kingdom is added to the mix.

macro --parameters Y10YD --countries Italy,Germany,France

Drawing the UK line works fine by itself

macro --parameters Y10YD --countries United_Kingdom

macro --parameters Y10YD --countries Italy,Germany,France,United_Kingdom

But, combining with the first chart makes some weird choices:

It isn't because of misaligned starting points:

macro --parameters Y10YD --countries Italy,Germany,France,United_States

[jmaslek]

This is quite interesting. EconDB gives the UK data daily and the other ones end of month.

We generate the dataframe as a multi index from a dictionary (country_data_df = pd.DataFrame.from_dict(country_data, orient="index").stack().to_frame()), so we will likely need to change that to some kind of outer merge.