diff --git a/src/controller/WorkbenchNavController.cpp b/src/controller/WorkbenchNavController.cpp
index 74c286a..4739b3b 100644
--- a/src/controller/WorkbenchNavController.cpp
+++ b/src/controller/WorkbenchNavController.cpp
@@ -50,6 +50,7 @@ void WorkbenchNavController::loadProjectsAndStructure() {
         return;
     }
     lastProjects_ = ps.value.rows;
+    tmExceptionCache_.clear();
     QString curP;
     if (!ps.value.rows.empty()) {
         const auto& first = ps.value.rows.front();
@@ -66,7 +67,6 @@ void WorkbenchNavController::loadProjectsAndStructure() {
 
     if (curP.isEmpty()) {
         lastStructNodes_.clear();
-        tmExceptionCache_.clear();
         emit structureLoaded(QString(), {});  // 暂无项目 → 空树
         return;
     }
@@ -186,12 +186,12 @@ void WorkbenchNavController::setCheckedTms(const QStringList& tmObjectIds) {
             }
             it = tmExceptionCache_.emplace(tm, ex.value).first;
         }
-        const auto grouped = data::dto::groupExceptionsByConsortium(it->second);
+        auto grouped = data::dto::groupExceptionsByConsortium(it->second);
         data::ObjectExceptionGroup g;
         g.objectId = tm;
         g.objectName = nameOf(tm);
-        g.consortia = grouped.consortia;
-        g.looseExceptions = grouped.loose;
+        g.consortia = std::move(grouped.consortia);
+        g.looseExceptions = std::move(grouped.loose);
         total += static_cast<int>(it->second.size());
         groups.push_back(std::move(g));
     }
diff --git a/src/controller/WorkbenchNavController.hpp b/src/controller/WorkbenchNavController.hpp
index 52616ba..2f28103 100644
--- a/src/controller/WorkbenchNavController.hpp
+++ b/src/controller/WorkbenchNavController.hpp
@@ -40,7 +40,7 @@ signals:
     void filesLoaded(const QString& tmObjectId, const std::vector<geopro::data::DsRow>& rows,
                      int total, bool append);
     void objectDetailLoaded(const QString& title, const geopro::data::DynamicForm& form);
-    void exceptionTreeLoaded(const std::vector<geopro::data::ObjectExceptionGroup>& groups, int tmCount);
+    void exceptionTreeLoaded(const std::vector<geopro::data::ObjectExceptionGroup>& groups, int exceptionCount);
     void datasetDetailLoaded(const geopro::data::DynamicForm& form);
     void loadFailed(const QString& stage, const QString& message);