Is the relationship between access tokens and refresh tokens and architecural problem?

[dopry]

I honestly think I'm starting to see an issue with the relationships between tokens... I'm starting to think that all the tokens should be related to a grant and that a grant should live for the life of it's tokens.... DOT currently seems to use the refresh token and accesstoken as the representation of the 'grant'... alternatively maybe we need a session, but the relationships between access and refresh tokens seems to be a common thread in the issue queue.

-- token relationship linked issues
#497
#585
#634
#638
#645
#663
#778
#839
#871
#1221

-- swappable token issues
#1120

-- other token expiration related issues.
#338
#472
#483
#522
#708
#746
#753