Fix ImageBatch with different channel count. (Comfy-Org#10815)

Author: comfyanonymous

nodes.py

@@ -1852,6 +1852,10 @@ def INPUT_TYPES(s):
     CATEGORY = "image"
 
     def batch(self, image1, image2):
+        if image1.shape[-1] != image2.shape[-1]:
+            channels = min(image1.shape[-1], image2.shape[-1])
+            image1 = image1[..., :channels]
+            image2 = image2[..., :channels]
         if image1.shape[1:] != image2.shape[1:]:
             image2 = comfy.utils.common_upscale(image2.movedim(-1,1), image1.shape[2], image1.shape[1], "bilinear", "center").movedim(1,-1)
         s = torch.cat((image1, image2), dim=0)