Please, update p/roundcube project stats.
The bug is in https://www.openhub.net/p/roundcube/contributors?sort=latest_commit. All graphs are not assigned to the proper users. I.e. users with many commits have an empty graph, users with small number of commits have too many commits on the graph.
I'm seeing the same here:
I looks like I have been inactive for years, and yet checking the "commits by top contributors" bars at the top it's clear that I have been quite active in the last year (and in fact, in the past 10 years or so)