Swagger - Multiple blocks are expanded simultaneously

Assemblies affected
ASP.NET Core OData 8.x

Describe the bug
When you click on the operation (block) in swagger, multiple blocks expanded instead of one.

Reproduce steps

1. Run your sample ODataRoutingSample
2. Go to http://localhost:64771/swagger
3. Click on "GET ​/v1​/Customers" block
   Expected result: only GET block expanded
   Actual result: "POST ​/v1​/Customers" expanded too.

Screenshots

Additional info
This happens because the same operationId generated in the swagger.json:

"/v1/Customers": {
"get": {
"tags": [
"Customers"
],
"operationId": "v1/Customers",
"responses": {
"200": {
"description": "Success"
}
}
},
"post": {
"tags": [
"Customers"
],
"operationId": "v1/Customers", <<< must be unique