Germline tests, regenerate germlines
feature-ga/3035-gapped-J+3036-3039-tests
Follows #3035 (closed). Closes #3036 (closed), #3039 (closed), #3083 (closed).
feature-ga/3035-gapped-J+3036-3039-tests
Follows #3035 (closed). Closes #3036 (closed), #3039 (closed), #3083 (closed).