fix: db-worker stops working after hot-reload

src/main/frontend/core.cljs

@@ -91,7 +91,6 @@
 (defn ^:export stop []
   ;; stop is called before any code is reloaded
   ;; this is controlled by :before-load in the config
-  (handler/stop!)
   (js/console.log "stop"))
 
 (defn ^:export delay-remount

src/main/frontend/handler.cljs

@@ -181,11 +181,6 @@
                                    (reset! vector-search-flows/*infer-worker-ready true))))
                         nil)))))))
 
-(defn stop! []
-  (db-browser/stop-workers!)
-  (reset! vector-search-flows/*infer-worker-ready false)
-  (prn "stop!"))
-
 (defn quit-and-install-new-version!
   []
   (p/let [_ (ipc/invoke "set-quit-dirty-state" false)]

src/main/frontend/worker/db_worker.cljs

@@ -57,7 +57,15 @@
             [missionary.core :as m]
             [promesa.core :as p]))
 
-(.importScripts js/self "worker.js")
+(def ^:private worker-bootstrap-loaded-key "__logseq_db_worker_bootstrap_loaded__")
+
+(defn- ensure-worker-bootstrap!
+  []
+  (when-not (gobj/get js/self worker-bootstrap-loaded-key)
+    (gobj/set js/self worker-bootstrap-loaded-key true)
+    (.importScripts js/self "worker.js")))
+
+(ensure-worker-bootstrap!)
 
 (declare <build-blocks-fts!)
 
@@ -1171,6 +1179,7 @@
 (defn- notify-invalid-data
   [{:keys [tx-meta]} errors]
   ;; don't notify on production when undo/redo failed
+
   (when-not (and (or (:undo? tx-meta) (:redo? tx-meta))
                  (not worker-util/dev?))
     (shared-service/broadcast-to-clients! :notification