fix: incorrect results when filtering unpublished posts (#4736)

#### What type of PR is this?
/kind bug
/area core
/milestone 2.10.x

#### What this PR does / why we need it:
修复筛选未发布文章时结果不正确的问题

#### Which issue(s) this PR fixes:
Fixes #4730 

#### Does this PR introduce a user-facing change?
```release-note
修复筛选未发布文章时结果不正确的问题
```

application/src/main/java/run/halo/app/core/extension/reconciler/PostReconciler.java

@@ -13,6 +13,7 @@ import java.util.Objects;
 import java.util.Optional;
 import java.util.Set;
 import lombok.AllArgsConstructor;
+import org.apache.commons.lang3.BooleanUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.jsoup.Jsoup;
 import org.springframework.context.ApplicationEvent;
@@ -102,6 +103,10 @@ public class PostReconciler implements Reconciler<Reconciler.Request> {
                     post.getMetadata().setAnnotations(annotations);
                 }
 
+                if (!annotations.containsKey(Post.PUBLISHED_LABEL)) {
+                    labels.put(Post.PUBLISHED_LABEL, BooleanUtils.FALSE);
+                }
+
                 var status = post.getStatus();
                 if (status == null) {
                     status = new Post.PostStatus();