$ git clone -n https://src.fedoraproject.org/rpms/rust-mptcp-pm.git /var/lib/mock/f45-build-43234-801/root/chroot_tmpdir/scmroot/rust-mptcp-pm
Cloning into '/var/lib/mock/f45-build-43234-801/root/chroot_tmpdir/scmroot/rust-mptcp-pm'...
$ git fetch origin be0bc6e67161168f55ca5d1a7ecfecd98ae51f5e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-mptcp-pm
 * [new ref]         be0bc6e67161168f55ca5d1a7ecfecd98ae51f5e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at be0bc6e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild