$ git clone -n https://src.fedoraproject.org/rpms/rust-rustix.git /var/lib/mock/f45-build-44558-815/root/chroot_tmpdir/scmroot/rust-rustix
Cloning into '/var/lib/mock/f45-build-44558-815/root/chroot_tmpdir/scmroot/rust-rustix'...
$ git fetch origin 36260b94554ac523cf1f4202250eb67882dc882d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rustix
 * [new ref]         36260b94554ac523cf1f4202250eb67882dc882d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 36260b9 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild