Detect duplicate and sequential Spotteron uploads

coastsnap/spotteron_batch_download.py

@@ -161,10 +161,16 @@ class Spotteron:
 
             if not images:
                 logger.info("No images returned. Check correct root_id is supplied")
+                break
 
-            for img in images:
-
+            for index, img in enumerate(images):
+                
                 if img.exists(output_folder) and overwrite == False:
+                    
+                    if img.output_filename == images[index-1].output_filename: # Check for sequential duplicate images
+                        logger.info(f"Duplicate Spotteron upload: {img.output_filename}")
+                        continue
+                    
                     logger.info("Existing images found. Stopping getting images")
                     break
                 else: