always use slice() for applying offset and limit in loki storage inst…

…ance, fixing the fuzzing test run

package.json

@@ -401,6 +401,7 @@
     "test:performance": "npm run build && npm run test:performance:lokijs:browser && npm run test:performance:lokijs:node && npm run test:performance:dexie && npm run test:performance:memory:browser && npm run test:performance:memory:node",
     "test:query-correctness-fuzzing:memory:node": "npm run transpile && cross-env DEFAULT_STORAGE=memory mocha --config ./config/.mocharc.cjs ./test_tmp/query-correctness-fuzzing.test.js --unhandled-rejections=strict --expose-gc",
     "test:query-correctness-fuzzing:custom:node": "npm run transpile && cross-env DEFAULT_STORAGE=custom mocha --config ./config/.mocharc.cjs ./test_tmp/query-correctness-fuzzing.test.js --unhandled-rejections=strict --expose-gc",
+    "test:query-correctness-fuzzing:lokijs:node": "npm run transpile && cross-env DEFAULT_STORAGE=lokijs mocha --config ./config/.mocharc.cjs ./test_tmp/query-correctness-fuzzing.test.js --unhandled-rejections=strict --expose-gc",
     "couch:start": "docker run -p 5984:5984 -e COUCHDB_USER=root -e COUCHDB_PASSWORD=root --rm --name rxdb-couchdb couchdb:3.3.1",
     "couch:stop": "docker rm -f rxdb-couchdb",
     "mongodb:start": "docker run -p 27017:27017 -p 27018:27018 -p 27019:27019 --rm --name rxdb-mongodb mongo:7.0.1",

src/plugins/storage-lokijs/rx-storage-instance-loki.ts

@@ -251,20 +251,6 @@ export class RxStorageInstanceLoki<RxDocType> implements RxStorageInstance<
         }
 
 
-
-
-        /**
-         * Offset must be used before limit in LokiJS
-         * @link https://github.com/techfort/LokiJS/issues/570
-         */
-        if (!mustRunMatcher && preparedQuery.skip) {
-            lokiQuery = lokiQuery.offset(preparedQuery.skip);
-        }
-
-        if (!mustRunMatcher && preparedQuery.limit) {
-            lokiQuery = lokiQuery.limit(preparedQuery.limit);
-        }
-
         let foundDocuments = lokiQuery.data().map((lokiDoc: any) => stripLokiKey(lokiDoc));
 
 
@@ -280,10 +266,9 @@ export class RxStorageInstanceLoki<RxDocType> implements RxStorageInstance<
         );
         foundDocuments = foundDocuments.filter((d: any) => queryMatcher(d));
 
-
-        if (mustRunMatcher) {
-            foundDocuments = foundDocuments.slice(skip, skipPlusLimit);
-        }
+        // always apply offset and limit like this, because
+        // sylvieQuery.offset() and sylvieQuery.limit() results were inconsistent
+        foundDocuments = foundDocuments.slice(skip, skipPlusLimit);
 
         return {
             documents: foundDocuments