diff --git a/tests/test-glog.t b/tests/test-glog.t
--- a/tests/test-glog.t
+++ b/tests/test-glog.t
@@ -2116,5 +2116,10 @@ issue3772
      user:
      date:        Thu Jan 01 00:00:00 1970 +0000
   
+  $ hg glog -r null:null
+  o  changeset:   -1:000000000000
+     user:
+     date:        Thu Jan 01 00:00:00 1970 +0000
+  
 
   $ cd ..
diff --git a/tests/test-log.t b/tests/test-log.t
--- a/tests/test-log.t
+++ b/tests/test-log.t
@@ -1304,5 +1304,10 @@ issue3772: hg log -r :null showing revis
   user:        
   date:        Thu Jan 01 00:00:00 1970 +0000
   
+  $ hg log -r null:null
+  changeset:   -1:000000000000
+  user:        
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  
 
   $ cd ..