Now the available channels for 4.2 are: stable-4.2, fast-4.2, and candidate-4.2
Verified on 4.1.0-0.nightly-2019-10-10-230834
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.