Allow swapin of a template instance as a means of cleaning things up

after a swapmod goes haywire.

tbsetup/swapexp.in

@@ -291,7 +291,7 @@ my $userdir = $experiment->UserDir();
 # since that means user is trying to self-terminate; not in the program.
 #
 if (my $instance = Template::Instance->LookupByExptidx($experiment->idx())) {
-    if (! $template_mode) {
+    if ($inout ne "in" && !$template_mode) {
 	die("*** $0:\n".
 	    "    $pid/$eid is a template instance; use another command\n");
     }