Merge 730eeec5d3 into af7b4a921d

In the FeatherMask node, when applying right and bottom feathering, the
loop variable starts at 0, making `-x` and `-y` equal to `-0`, which in
Python indexes the first element (index 0) instead of the last. This
causes the first column/row to be incorrectly modified while the last
column/row is left untouched.

Fix by using `-(x + 1)` and `-(y + 1)` so the loop correctly starts
from the last element (index -1) and works inward, matching the behavior
of the left/top feathering loops which start from index 0 and work
outward.

comfy_extras/nodes_mask.py

@@ -322,7 +322,7 @@ class FeatherMask(IO.ComfyNode):
 
         for x in range(right):
             feather_rate = (x + 1) / right
-            output[:, :, -x] *= feather_rate
+            output[:, :, -(x + 1)] *= feather_rate
 
         for y in range(top):
             feather_rate = (y + 1) / top
@@ -330,7 +330,7 @@ class FeatherMask(IO.ComfyNode):
 
         for y in range(bottom):
             feather_rate = (y + 1) / bottom
-            output[:, -y, :] *= feather_rate
+            output[:, -(y + 1), :] *= feather_rate
 
         return IO.NodeOutput(output)