submission_view_any didn't work after migrating from 1.6 to 2.2

Problem/Motivation

Tabs allowing some group members to view webform submissions were not showing after migrating to 2.2 from 1.6

Proposed resolution

After some debugging I found that the problem was coming from the accessCheck in the getCurrentGroupRelationship method.

Tabs were displayed again if I used accessCheck(FALSE).

After some deeper investigation I found that I needed to give the permission Relationship: View any entity relations to the related group roles to be able to make it work with group 2.2.

The corresponding permission in 1.6 Relation: View any entity relations was seemingly not needed.

Remaining tasks

It took me a few hours to identify the cause of my problem, so I guess we need to document it somewhere.