Copy info in transform

Tests/test_image_transform.py

@@ -1,14 +1,12 @@
 import math
 
-from PIL import Image
+from PIL import Image, ImageTransform
 
 from .helper import PillowTestCase, hopper
 
 
 class TestImageTransform(PillowTestCase):
     def test_sanity(self):
-        from PIL import ImageTransform
-
         im = Image.new("L", (100, 100))
 
         seq = tuple(range(10))
@@ -22,6 +20,16 @@ class TestImageTransform(PillowTestCase):
         transform = ImageTransform.MeshTransform([(seq[:4], seq[:8])])
         im.transform((100, 100), transform)
 
+    def test_info(self):
+        comment = b"File written by Adobe Photoshop\xa8 4.0"
+
+        im = Image.open("Tests/images/hopper.gif")
+        self.assertEqual(im.info["comment"], comment)
+
+        transform = ImageTransform.ExtentTransform((0, 0, 0, 0))
+        new_im = im.transform((100, 100), transform)
+        self.assertEqual(new_im.info["comment"], comment)
+
     def test_extent(self):
         im = hopper("RGB")
         (w, h) = im.size

src/PIL/Image.py

@@ -2293,6 +2293,7 @@ class Image(object):
             raise ValueError("missing method data")
 
         im = new(self.mode, size, fillcolor)
+        im.info = self.info.copy()
         if method == MESH:
             # list of quads
             for box, quad in data: