Setting seeds to random after exhausted

Popping last seeds value does not destroy last element in list, resulting in remaining repeats of prompt to have seed set identical to last seed provided in prompt

gen_img.py

@@ -2835,8 +2835,12 @@ def scale_and_round(x):
                 # prepare seed
                 if seeds is not None:  # given in prompt
                     # num_images_per_promptが多い場合は足りなくなるので、足りない分は前のを使う
-                    if len(seeds) > 0:
+                    # Previous implementation may result in unexpected behaiviour when number of seeds is lesss than number of repeats. Last seed is taken for rest of repeated prompts
+                    if len(seeds) > 1:
                         seed = seeds.pop(0)
+                    elif len(seeds)  == 1:
+                        seed = seeds.pop(0)
+                        seeds = None
                 else:
                     if args.iter_same_seed:
                         seed = iter_seed
@@ -2847,6 +2851,7 @@ def scale_and_round(x):
                     seed = seed_random.randint(0, 2**32 - 1)
                 if args.interactive:
                     logger.info(f"seed: {seed}")
+                # logger.info(f"seed: {seed}") #debugging logger. Uncomment to verify if expected seed is added correctly.
 
                 # prepare init image, guide image and mask
                 init_image = mask_image = guide_image = None