$ git clone -n https://src.fedoraproject.org/rpms/pdc-client.git /var/lib/mock/f39-build-1453482-32884/root/chroot_tmpdir/scmroot/pdc-client
Cloning into '/var/lib/mock/f39-build-1453482-32884/root/chroot_tmpdir/scmroot/pdc-client'...
$ git fetch origin 13f22a980c3473ffc43dfac2e0b14973a921a910:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pdc-client
 * [new ref]         13f22a980c3473ffc43dfac2e0b14973a921a910 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 13f22a9 Add python3-zombie-imp to BuildRequires to bandaid ftbfs until it can be fixed.