User sees call to action after registration

See also commits in mediawiki/selenium[1], jenkins-job-builder-config[2] and zuul-config[3].

1: https://gerrit.wikimedia.org/r/#/c/144978/
2: https://gerrit.wikimedia.org/r/#/c/150172/
3: https://gerrit.wikimedia.org/r/#/c/152795/

Paired with: Chris McMahon
Paired with: Sam Smith
Bug: 63172
Change-Id: I79d9468e56bc7941c7c5bb27a77d1622bc7d3836
Merge "User sees call to action after registration"