AbstractBeanFactory.markBeanAsCreated() reliably clears merged bean definition first

Issue: SPR-14269

spring-beans/src/main/java/org/springframework/beans/factory/support/AbstractBeanFactory.java

@@ -1503,11 +1503,10 @@ public abstract class AbstractBeanFactory extends FactoryBeanRegistrySupport imp
 	 */
 	protected void markBeanAsCreated(String beanName) {
 		if (!this.alreadyCreated.contains(beanName)) {
-			this.alreadyCreated.add(beanName);
-
 			// Let the bean definition get re-merged now that we're actually creating
 			// the bean... just in case some of its metadata changed in the meantime.
 			clearMergedBeanDefinition(beanName);
+			this.alreadyCreated.add(beanName);
 		}
 	}