$ git clone -n https://src.fedoraproject.org/rpms/hplip.git /var/lib/mock/f42-build-side-1-3533591-46362/root/chroot_tmpdir/scmroot/hplip
Cloning into '/var/lib/mock/f42-build-side-1-3533591-46362/root/chroot_tmpdir/scmroot/hplip'...
$ git fetch origin 61a4f33d3a811f559bfde7f27eade48f16740df5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hplip
 * [new ref]         61a4f33d3a811f559bfde7f27eade48f16740df5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 61a4f33 plugin.conf now looks to use sha256 as well per email comms with HP, drop the revert