Implicit grant flow is not generating an Ops token

Bug description

The ops claim, which link the original session to the id token, is not generated in the case of the implicit grant flow. Therefore, the endSession is not killing the original session, in the case of an id token generated by the implicit grant flow

How to reproduce the issue

1. enable "Store Ops Tokens"
2. Generate an id token via the implicit grant flow

Expected behaviour

The id token should contain the ops claim

Current behaviour

the ops claim is not present in the id token
 

Work around

There is none