$ git clone -n https://src.fedoraproject.org/rpms/rust-radix-heap.git /var/lib/mock/f45-build-44213-811/root/chroot_tmpdir/scmroot/rust-radix-heap
Cloning into '/var/lib/mock/f45-build-44213-811/root/chroot_tmpdir/scmroot/rust-radix-heap'...
$ git fetch origin 78a0fbb4b8299e43c4b425197350f5bac09c04dd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-radix-heap
 * [new ref]         78a0fbb4b8299e43c4b425197350f5bac09c04dd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 78a0fbb Regenerate with rust2rpm v28