Fix deletion when a picture has a replacement chain

app.py

@@ -554,6 +554,13 @@ def delete_picture(id):

                                
                                
                                
                            
                                
                                    
                                        
                                            554  
                                            
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            555  
                                                PictureLicence.query.filter_by(resource=resource).delete()
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            556  
                                                PictureRegion.query.filter_by(resource=resource).delete()
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        557 +
                                            if resource.replaces:
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        558 +
                                                resource.replaces.replaced_by = None
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        559 +
                                            if resource.replaced_by:
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        560 +
                                                resource.replaced_by.replaces = None
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        561 +
                                            resource.copied_from = None
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        562 +
                                            for copy in resource.copies:
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        563 +
                                                copy.copied_from = None
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            564  
                                                db.session.delete(resource)
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            565  
                                                db.session.commit()
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            566