$ git clone -n https://src.fedoraproject.org/rpms/rust-ovs-unixctl.git /var/lib/mock/f45-build-43625-804/root/chroot_tmpdir/scmroot/rust-ovs-unixctl
Cloning into '/var/lib/mock/f45-build-43625-804/root/chroot_tmpdir/scmroot/rust-ovs-unixctl'...
$ git fetch origin 273e02b4a658523c3300a31ff01badf539d5aaeb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ovs-unixctl
 * [new ref]         273e02b4a658523c3300a31ff01badf539d5aaeb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 273e02b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild