OData4 $select doesn't contain top navigation property

[machaofastgmail]

hi @tschettler

First of all, thanks for your great work on breeze-odata4.

When we migrated our code from odata3 to odata4, we found a small issue. The query below returns different response with odata4.

const query =  new breeze.EntityQuery('ProductDetails') 
.select('Product/Categories')
.expand('Product/Categories') .take(1)

With Odata3, the uri generated will be ProductDetails?$expand=Product/Categories&$select=Product/Categories&$top=1
and the response only has data properties on Category.

However with Odata4, the uri generated will be ProductDetails?$expand=Product($select=Categories;$expand=Categories)&$top=1
and the response has extra data properties on ProductDetail and Product , not just on Category.

Our workaround is to add top navigation properties to queryOptions.select, like this, and it seems to work fine.

private addSelectOption(entityType: EntityType, queryOptions: QueryOptions, selectClause: SelectClause): void {
    // ......
    queryOptions.select = queryOptions.select || [];   // ~~~~ init select ~~~~~~
    selectClause.propertyPaths.forEach(pp => {
      // ......
      workingOptions.select.push(property);

      if(props.length){    // ~~~~ add top properies if not exsiting~~~~~~
        const rootProperty = props.shift().nameOnServer;
        if (!queryOptions.select.find(p => p === rootProperty)) {
           queryOptions.select.push(rootProperty);
        }       
      }      
    });
  }

Would you pls help to address this issue here , thanks in advance.