diff --git a/apps/ely-doc/src/chrome.rs b/apps/ely-doc/src/chrome.rs
index c849bf6..60c756f 100644
--- a/apps/ely-doc/src/chrome.rs
+++ b/apps/ely-doc/src/chrome.rs
@@ -80,7 +80,8 @@ impl Docs {
         let shown = self
             .active_tab()
             .map(|tab| (tab.view.clone(), tab.doc.clone()));
-        let tab = shown.as_ref().map(|(view, doc)| (view, doc));
+        // Hidden, it follows nothing: no reads on every move.
+        let tab = shown.as_ref().filter(|_| self.navigating).map(|(view, doc)| (view, doc));
         self.navigator
             .update(cx, |navigator, cx| navigator.show(tab, cx));
         shown.filter(|_| self.navigating)?;
diff --git a/apps/ely-doc/src/navigate/tests.rs b/apps/ely-doc/src/navigate/tests.rs
index 46bda18..ff19cdc 100644
--- a/apps/ely-doc/src/navigate/tests.rs
+++ b/apps/ely-doc/src/navigate/tests.rs
@@ -253,6 +253,30 @@ fn pdfs_export_a_range_and_locked_files_ask() {
     );
 }
 
+#[test]
+fn a_hidden_navigator_reads_nothing() {
+    let dir = tempfile::tempdir().expect("a temp dir");
+    let mut cx = TestAppContext::single();
+    let Some(docs) = docs(&mut cx, dir.path()) else {
+        eprintln!("SKIP: no LOK build");
+        return;
+    };
+    crate::tests::blank(&mut cx, &docs);
+    let follows = |cx: &mut TestAppContext| cx.update(|app| docs.read(app).navigator.read(app).shown.is_some());
+    cx.update(|app| docs.update(app, |docs, cx| docs.left_view(cx)));
+    assert!(follows(&mut cx), "shown: it follows the tab");
+    cx.update(|app| docs.update(app, |docs, cx| {
+        docs.navigating = false;
+        docs.left_view(cx)
+    }));
+    assert!(!follows(&mut cx), "hidden: no tab to reread");
+    cx.update(|app| docs.update(app, |docs, cx| {
+        docs.navigating = true;
+        docs.left_view(cx)
+    }));
+    assert!(follows(&mut cx), "shown again: it reads once more");
+}
+
 /// The navigator alone as a window's view.
 struct Host(Entity<Navigator>);
 
diff --git a/tasks/BUGS.md b/tasks/BUGS.md
index f722728..98326d4 100644
--- a/tasks/BUGS.md
+++ b/tasks/BUGS.md
@@ -53,7 +53,7 @@
 - [x] D-04 一条批注的时间读不出，全部批注与修订都不显示 — 逐条解析，读不出的批注写明作者与原因（AX 可读、可滚动），修订照留
 - [x] D-05 邮件合并某条记录失败时内核文档泄漏 — 失败的记录照样关闭内核文档，再传出首个错误
 - [x] D-06 导航栏大纲点击按当前列表取下标，后台重读后可能越界 — 点击按绘制时的列表跳转；补点击路径的回归测试
-- [ ] D-07 导航栏隐藏时仍随每次光标移动重读大纲与书签
+- [x] D-07 导航栏隐藏时仍随每次光标移动重读大纲与书签 — 隐藏时不跟随标签、不读；再显示时读一次
 - [ ] D-08 Linux、Windows 上“打印…”可用，导出 PDF 后才报“此平台未构建”
 - [x] M-01 键入期间外部以相同内容重写文件，丢掉上次停顿之后键入的全部文字 — 先等页面送出未送的键；同文只接过文件与字节、标签为已保存；磁盘回到上次保存的文字时保留编辑并恢复自动保存；R1–R4 字节、自动保存、在途写入、已保存基线；R5 PASS
 - [ ] M-02 `refresh` 归零版本计数却不换代，在途的一键让标签一直“未落定”