Conflict proto files with diffrent package name

[YeahhhhzZ]

project directories

tree .
.
├── build.rs
├── Cargo.toml
├── demo
│   └── main.rs
└── proto
    ├── common
    │   └── header.proto
    ├── mod.rs
    └── module
        ├── header.proto
        └── items.proto

common/header.proto:

syntax = "proto2";

package common.header;

message Header {
  optional uint64 id = 1;
  optional uint64 timestamp_ms = 2;
}

module/header.proto:

syntax = "proto2";

package module.header;

message Header {
  optional string source = 1;
}

module/items.proto:

syntax = "proto2";

import "proto/common/header.proto";

package module.items;

message Items {
  optional common.header.Header header = 1;
  optional string name = 2;
}

build.rs

use protobuf_codegen::Codegen;

fn main() {
    let mut codegen = Codegen::new();
    codegen
        .protoc()
        .cargo_out_dir("proto")
        .includes(&["./"])
        .inputs(&[
            "./proto/common/header.proto",
            "./proto/module/header.proto",
            "./proto/module/items.proto",
        ]);
    if let Ok(protoc_env) = std::env::var("PROTOC") {
        codegen.protoc_path(std::path::Path::new(&protoc_env));
    }
    codegen.run_from_script();
}

build output:

mod.rs:

// @generated

pub mod header;
pub mod header;
pub mod items;

[YeahhhhzZ]

When compiled using prost(https://github.com/tokio-rs/prost), the output file is as follows:

build.rs:

use prost_build;

fn main() {
    let mut prost_build = prost_build::Config::new();
    prost_build.include_file("proto_mod.rs");
    prost_build
        .compile_protos(
            &[
                "proto/common/header.proto",
                "proto/module/header.proto",
                "proto/module/items.proto",
            ],
            &["."],
        )
        .unwrap();
}

proto_mod.rs:

// This file is @generated by prost-build.
pub mod common {
    pub mod header {
        include!(concat!(env!("OUT_DIR"), "/common.header.rs"));
    }
}
pub mod module {
    pub mod header {
        include!(concat!(env!("OUT_DIR"), "/module.header.rs"));
    }
    pub mod items {
        include!(concat!(env!("OUT_DIR"), "/module.items.rs"));
    }
}