Description of problem:
Upgraded from Fedora 24 to Fedors 26 using DNF system upgrade. The commands used were as in the instructions.
dnf system-upgrade download --refresh -releaseserver=26
dnf system-upgrade reboot

Version-Release number of selected component (if applicable):
2.6.3

How reproducible:
I upgraded two systems and it happened on both.

Steps to Reproduce:
1. Use dnf to do a system upgrade.
2. run dnf list installed

Actual results:
All the packages upgraded are marked as being installed from the  commandline which is technically true, but not quite what I expect.

Expected results:
I expect the repo of the packages to be the repo from which it was downloaded.

Additional info:
When dnf upgrade is run and packages are updated, the repo information is updated.

Apparently, running 
dnf repository-packages @@commandline remove-or-reinstall
will reinstall all the packages so then they will have the correct repo name. Seems excessive since all the packages have to be downloaded again.