$ git clone -n https://src.fedoraproject.org/rpms/rust-num-format.git /var/lib/mock/f45-build-43464-803/root/chroot_tmpdir/scmroot/rust-num-format
Cloning into '/var/lib/mock/f45-build-43464-803/root/chroot_tmpdir/scmroot/rust-num-format'...
$ git fetch origin 8956f7747209f911f25098bf2a14beea9e1733d7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-num-format
 * [new ref]         8956f7747209f911f25098bf2a14beea9e1733d7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8956f77 Regenerate with rust2rpm v28