diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -5670,10 +5670,10 @@ def resolve(ui, repo, *pats, **opts):
                     ui.setconfig('ui', 'forcemerge', '', 'resolve')
                     ms.commit()
 
-                # replace filemerge's .orig file with our resolve file
-                # for files in tocomplete, ms.resolve will not overwrite
-                # .orig -- only preresolve does
-                util.rename(a + ".resolve", a + ".orig")
+                # replace filemerge's .orig file with our resolve file, but only
+                # for merges that are complete
+                if complete:
+                    util.rename(a + ".resolve", a + ".orig")
 
         for f in tocomplete:
             try:
@@ -5687,6 +5687,10 @@ def resolve(ui, repo, *pats, **opts):
                 ui.setconfig('ui', 'forcemerge', '', 'resolve')
                 ms.commit()
 
+            # replace filemerge's .orig file with our resolve file
+            a = repo.wjoin(f)
+            util.rename(a + ".resolve", a + ".orig")
+
         ms.commit()
 
         if not didwork and pats:
diff --git a/tests/test-resolve.t b/tests/test-resolve.t
--- a/tests/test-resolve.t
+++ b/tests/test-resolve.t
@@ -207,6 +207,30 @@ resolve <file> should re-merge file
   [1]
   $ grep '<<<' file1 > /dev/null
 
+test .orig behavior with resolve
+
+  $ echo resolve > file
+  $ hg resolve -q file1 --tool 'f --dump $TESTTMP/repo/file1.orig'
+  */file1~base*: (glob)
+  >>>
+  foo
+  <<<
+  */file1~other*: (glob)
+  >>>
+  foo
+  bar
+  <<<
+  $TESTTMP/repo/file1: (glob)
+  >>>
+  foo
+  baz
+  <<<
+  $TESTTMP/repo/file1.orig: (glob)
+  >>>
+  foo
+  baz
+  <<<
+
 resolve <file> should do nothing if 'file' was marked resolved
   $ echo resolved > file1
   $ hg resolve -m file1