OFS.Image: 'Image.update_data' did not refresh the Etag.

doc/CHANGES.txt

@@ -23,6 +23,8 @@ Zope Changes
 
       - Missing import of NotFound in webdav.Resource.
 
+      - OFS.Image: 'Image.update_data' did not refresh the Etag.
+
   Zope 2.8.6 (2006/02/25)
 
     Bugs Fixed

lib/python/OFS/Image.py

@@ -781,6 +781,7 @@ class Image(File):
 
         self.ZCacheable_invalidate()
         self.ZCacheable_set(None)
+        self.http__refreshEtag()
 
     def __str__(self):
         return self.tag()