SPR-17166 @Scheduled tasks run twice on proxied bean

SPR-17166/pom.xml

@@ -0,0 +1,19 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<groupId>xxx</groupId>
+	<artifactId>xxx</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>2.0.4.RELEASE</version>
+	</parent>
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter</artifactId>
+		</dependency>
+	</dependencies>
+</project>

SPR-17166/src/main/java/xxx/Application.java

@@ -0,0 +1,43 @@
+package xxx;
+
+import java.time.Instant;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Scope;
+import org.springframework.context.annotation.ScopedProxyMode;
+import org.springframework.scheduling.annotation.EnableScheduling;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Service;
+
+@SpringBootApplication
+@EnableScheduling
+public class Application {
+
+    @Service
+    @Scope(proxyMode = ScopedProxyMode.TARGET_CLASS)
+    public static class A {
+
+        @Scheduled(fixedDelay = 1000)
+        public void task() {
+            System.out.println(Instant.now());
+        }
+
+    }
+
+    @Service
+    public static class B {
+
+        private final A a;
+
+        B(A a) {
+            this.a = a;
+        }
+
+    }
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+
+}