[M5+] cargoxx add evicts stale auto-discovered overlay rows

src/cli/cmd_add.cpp

@@ -139,6 +139,20 @@ auto cmd_add(const fs::path& project_root, const std::string& name,
 
     const auto effective_overlay = overlay_path.value_or(linkdb::default_overlay_path());
 
+    // Drop any auto-discovered overlay rows for this package before
+    // resolving — they may have been written by an older cargoxx whose
+    // scanner produced a different recipe (e.g. picked the wrong
+    // CMake config in a multi-config tree). Manual recipes survive.
+    {
+        auto db = linkdb::Database::open(effective_overlay);
+        if (!db) {
+            return std::unexpected(db.error());
+        }
+        if (auto r = db->evict_auto_recipes(name); !r) {
+            return std::unexpected(r.error());
+        }
+    }
+
     auto known = recipe_already_known(name, effective_version, components,
                                       effective_overlay);
     if (!known) {