--- a/mercurial/merge.py	Tue Jan 06 10:30:22 2009 +0100
+++ b/mercurial/merge.py	Wed Jan 07 02:11:17 2009 +0100
@@ -369,7 +369,9 @@
                 repo.dirstate.forget(f)
         elif m == "f": # forget
             repo.dirstate.forget(f)
-        elif m in "ge": # get or exec change
+        elif m == "e": # exec change
+            repo.dirstate.normaldirty(f)
+        elif m == "g": # get
             if branchmerge:
                 repo.dirstate.normaldirty(f)
             else:

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-up-issue1456	Wed Jan 07 02:11:17 2009 +0100
@@ -0,0 +1,17 @@
+#!/bin/sh
+
+rm -rf a
+hg init a
+cd a
+
+echo foo > foo
+hg ci -qAm0
+chmod +x foo
+hg ci -m1
+hg co -q 0
+echo dirty > foo
+sleep 1
+hg up -q
+cat foo
+hg st -A
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-up-issue1456.out	Wed Jan 07 02:11:17 2009 +0100
@@ -0,0 +1,2 @@
+dirty
+M foo