Specific field tag based naming conventions (overriding views-view-field.html.twig for specific fields) I've scoured the documentation and I simply cannot find an answer to this question regarding naming convention for twig files given a tagged view with the override of a specific field.
Let me create a scenario to explain the problem. 

Given Viewname with tag viewtag with a block display and a fieldname field.

I can override the theme as follows

Original file --> Overridden file name


views-view-unformatted.html.twig --> views-view-unformatted--viewtag.html.twig
views-view-field.html.twig --> views-view-field--fieldname.html.twig
views-view-field.html.twig --> views-view-field--viewname--block--fieldname.html.twig
views-view-field.html.twig --> views-view-field--block--fieldname.html.twig


I cannot figure out how to override views-view-field for a specific fieldname by specifying the viewtag. The following names do not work:


views-view-field--viewtag--fieldname
views-view-field--viewtag--block--fieldname
views-view-field--fieldname--viewtag
views-view-field--block--fieldname--viewtag
views-view-field--block--viewtag--fieldname


I've run out of possible combinations and yet I'm simply not able to get the viewtags to override the specific field. Surely there has to be a way to do this given that you can use the viewname to override the templates. I'd rather avoid having 50 versions of a view template when 1 could do the same thing.
I am able to use the tag to create template files for everything other
  than the specific field templates. – John Millnik


Your comment gave me the following thought: When you tag something, you tag the node and not the fields themselves. Fields do not have any tags, which makes me think that what you're trying to do is not possible.