On Tuesday, December 13, at 10:12 AM, a Jutge.org developer told me that this had been fixed, and I could verify it that same day.
Mar 17 2019
Jan 9 2019
Jun 5 2018
May 2 2018
Apr 28 2018
Yesterday at 14:26 someone from CESICAT called me in order to confirm that the issue was solved, as I had noticed the day before, when I updated this report.
Apr 26 2018
CESICAT hasn't replied yet to the message I sent them yesterday, but I have just seen that they the reproduction steps are no longer functional, so they must have fixed it or are actively working on fixing it.