$ git clone -n https://src.fedoraproject.org/rpms/rust-rfd.git /var/lib/mock/f45-build-44437-813/root/chroot_tmpdir/scmroot/rust-rfd
Cloning into '/var/lib/mock/f45-build-44437-813/root/chroot_tmpdir/scmroot/rust-rfd'...
$ git fetch origin 93f3da417779c9ec3eead9161891f1d4c9b54753:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rfd
 * [new ref]         93f3da417779c9ec3eead9161891f1d4c9b54753 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 93f3da4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild