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This bug was initially created as a copy of Bug #1829061


c/image/docker.newImageSource, when using mirrors, creates an ImageReference with a types.ImageReference pointing at the mirror, with no record of the primary location. This breaks signature verification, which ultimately uses ImageSource.Reference() to decide what to verify the signature against.

Assigning to Jindrich as I believe this is a packaging exercise at this point.

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.

https://access.redhat.com/errata/RHSA-2020:3053