Index: subversion/libsvn_subr/cmdline.c
===================================================================
--- subversion/libsvn_subr/cmdline.c	(revision 1881848)
+++ subversion/libsvn_subr/cmdline.c	(working copy)
@@ -1400,6 +1400,7 @@
                                   apr_pool_t *pool)
 {
   const char *editor, *cmd, *base_dir, *file_name, *base_dir_apr;
+  const char *file_name_local;
   char *old_cwd;
   int sys_err;
   apr_status_t apr_err;
@@ -1423,9 +1424,11 @@
     return svn_error_wrap_apr
       (apr_err, _("Can't change working directory to '%s'"), base_dir);
 
+  SVN_ERR(svn_path_cstring_from_utf8(&file_name_local, 
+                                     escape_path(pool, file_name), pool));
   /* editor is explicitly documented as being interpreted by the user's shell,
      and as such should already be quoted/escaped as needed. */
-  cmd = apr_psprintf(pool, "%s %s", editor, escape_path(pool, file_name));
+  cmd = apr_psprintf(pool, "%s %s", editor, file_name_local);
   sys_err = system(cmd);
 
   apr_err = apr_filepath_set(old_cwd, pool);