Beginning with 2nd June, only the "Single Sign On" option for login to the GitLab web interface will be possible. If you don't have an MPCDF wide second factor so far, please get one at our SelfService (https://selfservice.mpcdf.mpg.de). The GitLab internal second factor will not work.
The ELN base class PublicationReference has calls to retrieve data from the crossref API. This merge request set timeouts and a mailto within the request.get to fall into polite pool. This was necessary because the external API has ofter some downtime that gets the processing of the uploads stuck.