[fix] sync: wot_db must be save by main thread

lib/modules/blockchain/blockchain-dal/src/lib.rs

@@ -247,6 +247,10 @@ impl WotsV10DBs {
         self.wot_db
             .save()
             .expect("Fatal error : fail to save WotDB !");
+        self.save_dbs_except_graph();
+    }
+    /// Save wot databases from their respective files (except wot graph)
+    pub fn save_dbs_except_graph(&self) {
         self.identities_db
             .save()
             .expect("Fatal error : fail to save IdentitiesV10DB !");

lib/modules/blockchain/blockchain/src/sync/apply/wot_worker.rs

@@ -47,7 +47,7 @@ pub fn execute(
         }
         // Save wots databases
         info!("Save wots databases in files...");
-        databases.save_dbs();
+        databases.save_dbs_except_graph();
 
         // Send finish signal
         sender_sync_thread

lib/modules/blockchain/blockchain/src/sync/mod.rs

@@ -401,6 +401,9 @@ pub fn local_sync<DC: DuniterConf>(profile: &str, conf: &DC, sync_opts: SyncOpt)
     // Save params db
     currency_params_db.save().expect("Fail to save params db");
 
+    // Save wot db
+    wot_databases.wot_db.save().expect("Fail to save wot db");
+
     let main_job_duration =
         SystemTime::now().duration_since(main_job_begin).unwrap() - all_wait_duration;
     info!(