This is sample implementation (Not verified yet) .

compare_method.diff

diff --git a/diffoscope/comparators/debian.py b/diffoscope/comparators/debian.py
index 9c12f3d..9f4bfae 100644
--- a/diffoscope/comparators/debian.py
+++ b/diffoscope/comparators/debian.py
@@ -147,6 +147,17 @@ class DotChangesFile(DebControlFile):
         file._deb822 = changes
         return True
 
+    def compare(self, other, source=None):
+        try:
+            differences = self.compare_details(other, source)
+            combine_file_list = [(x, y) for x, y in zip(self.deb822.get('Files'), other.deb822.get('Files'))]
+            L = [f for f in  enumerate(combine_file_list) if f[0]['md5sum'] != f[1]['md5sum'] and f[0]['name'].endswith('.buildinfo')]
+            if not all(filter(None, differences[:-1])) and not L:
+                return None
+            else:
+                return super(DotChangesFile, self).compare(other, source)
+        except TypeError:
+            return super(DotChangesFile, self).compare(other, source)