$ git clone -n https://src.fedoraproject.org/rpms/rust-qapi-codegen.git /var/lib/mock/f45-build-44160-811/root/chroot_tmpdir/scmroot/rust-qapi-codegen
Cloning into '/var/lib/mock/f45-build-44160-811/root/chroot_tmpdir/scmroot/rust-qapi-codegen'...
$ git fetch origin 37a39fba0a5b5816af499eee51aec16c61690d33:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-qapi-codegen
 * [new ref]         37a39fba0a5b5816af499eee51aec16c61690d33 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 37a39fb Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild