From 1e11704a7a850c4cd7a340888a1237b2442bf59b Mon Sep 17 00:00:00 2001
From: Arnaud Wurmel <arnaud.wurmel@visiblepatient.com>
Date: Fri, 23 Apr 2021 14:41:25 +0200
Subject: [PATCH] Fix crash with atomic values

---
 Sources/Atomic.swift | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Sources/Atomic.swift b/Sources/Atomic.swift
index e5db19d..d7453c1 100644
--- a/Sources/Atomic.swift
+++ b/Sources/Atomic.swift
@@ -69,8 +69,9 @@ final class Atomic<Value> {
     @discardableResult
     func modify(action: (Value) throws -> Value) rethrows -> Value {
         return try withValue { value in
+            let oldValue = value
             _value = try action(value)
-            return value
+            return oldValue
         }
     }