$ git clone -n https://src.fedoraproject.org/rpms/hplip.git /var/lib/mock/f39-build-2270257-54790/root/chroot_tmpdir/scmroot/hplip
Cloning into '/var/lib/mock/f39-build-2270257-54790/root/chroot_tmpdir/scmroot/hplip'...
$ git fetch origin 187b064062ee720212f6462ff182e2813f432ded:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hplip
 * [new ref]         187b064062ee720212f6462ff182e2813f432ded -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 187b064 add fallback url to hp-plugin-download