erp5_oauth2_authorisation: Make logged_in_once usable as ERP5Form action

Base_callDialogMethod may not provide REQUEST nor RESPONSE, and may provide
other arguments. Make the former optional, ignore the latter, and fallback
on RequestContainer's magic when REQUEST is None.
1 job for for_testrunner_2 in 0 seconds (queued for 1 second)
Status Job ID Name Coverage
  External
passed Wendelin.UnitTest-Master

00:18:41