Probably another artefact related to T119755:
There are six IDs all with the very same email address of ttijhof, but with names of other people. They all have "scm" as their source:
As @lcanasdiaz wrote via email,
> Those people where grouped in a single identity a few weeks ago. Yes, something strange happened in the past with that accounts and the result of our matching process seems a bit confusing. Besides that Alvaro has just told me we had issues with that identities two years ago, before the sorting hat age! So, we'll have a deep look to identify clearly the reason.