$ git clone -n https://src.fedoraproject.org/rpms/plasma-print-manager.git /var/lib/mock/f40-build-2481531-61633/root/chroot_tmpdir/scmroot/plasma-print-manager
Cloning into '/var/lib/mock/f40-build-2481531-61633/root/chroot_tmpdir/scmroot/plasma-print-manager'...
$ git fetch origin 4ddf79009034d175070f0881a3baf4fb409a5f86:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-print-manager
 * [new ref]         4ddf79009034d175070f0881a3baf4fb409a5f86 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4ddf790 Undoing last change