From 248bd5cc0df275c2639097438c156a27ebda91a2 Mon Sep 17 00:00:00 2001
From: Daniel Hahler <git@thequod.de>
Date: Thu, 23 Apr 2015 17:57:46 +0200
Subject: [PATCH] varstash: fix get_autostash_array_name for Zsh 4.3.17
 (Travis)

---
 lib/varstash | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/varstash b/lib/varstash
index a36ed2e..26b2e72 100644
--- a/lib/varstash
+++ b/lib/varstash
@@ -193,7 +193,11 @@ function get_autostash_array_name() {
     local autostash_name=$(_mangle_var AUTOSTASH)
     # Create a scalar variable linked to an array (for exporting).
     local autostash_array_name=${(L)autostash_name}
-    typeset -xT $autostash_name $autostash_array_name
+    if ! (( ${(P)+autostash_array_name} )); then
+        # Conditionally set it, to prevent error with Zsh 4.3:
+        # can't tie already tied scalar: ...
+        typeset -xT $autostash_name $autostash_array_name
+    fi
     ret=$autostash_array_name
 }