[Tagging] breads of bakeries

[iriman at chmail.ir]

Hi
I've tagged a few bakeries for the bread they sell. 
At first I used semicolon to separate values:

shop=bakery
bread=x;y;z

Since I'm focused on adding/updating bakeries that are using wholemeal flour in their products, I added a general tag bread:wholemeal=yes.

But this tag was too general because some bakeries sell more than one type of bread and not all of them are made of wholemeal flour. So I decided to separate values with a namespace scheme:

shop=bakery
bread:x=yes
bread:y=yes
bread:z=yes

and expanded this tagging by another tag per bread to know if it's made of wholmeal flour:

bread:x:wholemeal=yes
bread:z:wholemeal=yes

By this method it's possible to face a long list of tags of bread types for a single bakery and also a lot of namespaced keys in general, as pointed by mueschel:

<https://www.openstreetmap.org/changeset/150528116>

So is it better to retag like first tagging and also add the bread:wholemeal with semicolon-separeted values?

shop=bakery
bread=x;y;z
bread:wholemeal=x;z

or any other suggestion?

Thanks
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