Description of problem: The file to upload using the upload screen does not have to have any extension, it is quite normal to have a raw file without any extension (e.g. my-fedora-disk and not my-fedora-disk.img). The problem is, that we block the user from uploading such a file with an error.
verified on master UI
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 (Moderate: OpenShift Container Platform 4.7.0 security, bug fix, and enhancement update), 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-2020:5633