From caa214f1bdcdf29f20bd818ed997b3f4eada64db Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Thu, 22 Sep 2016 08:29:33 +0200
Subject: [PATCH] Fix negation error

We check whether the old key already exists.

If it does _not_ exist, the entry is borrowed, from my understanding.
I'm not sure, though.
---
 libimagstore/src/store.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libimagstore/src/store.rs b/libimagstore/src/store.rs
index 732a2490..68cf3d7a 100644
--- a/libimagstore/src/store.rs
+++ b/libimagstore/src/store.rs
@@ -667,7 +667,7 @@ impl Store {
                 Ok(m)  => m,
             };
 
-            if hsmap.contains_key(&old_id) {
+            if !hsmap.contains_key(&old_id) {
                 return Err(SE::new(SEK::EntryAlreadyBorrowed, None));
             } else {
                 let old_id_pb = try!(old_id.clone().with_base(self.path().clone()).into_pathbuf());