Incorrect translation of the incomplete shared pointer to a structure

[nenadv]

The following code (upcfish.upc):

struct OceanGrid1{
    int SharkForceY; 
    };
struct Shark {
    shared struct OceanGrid1 *position1;
    shared struct OceanGrid *position;
    };

struct OceanGrid{
    int SharkForceY; 
    };

translates into

struct OceanGrid1 {                                                             
    int SharkForceY;                                                            
};                                                                              
struct Shark {                                                                  
    upcr_pshared_ptr_t position1;                                               
    struct OceanGrid;                                                           
    upcr_pshared_ptr_t position;                                                
};                                                                              
struct OceanGrid {                                                              
    int SharkForceY;                                                            
};

Line "struct OceanGrid" in the "Sahrk" structure is extra. It seems that it happens only on the incomplete types.