Always return a new item collector in the search extractor

Author: mauriciocolli

extractor/src/main/java/org/schabi/newpipe/extractor/search/SearchExtractor.java

@@ -17,11 +17,8 @@ public NothingFoundException(String message) {
         }
     }
 
-    private final InfoItemsSearchCollector collector;
-
     public SearchExtractor(StreamingService service, SearchQueryHandler linkHandler) {
         super(service, linkHandler);
-        collector = new InfoItemsSearchCollector(service.getServiceId());
     }
 
     public String getSearchString() {
@@ -31,7 +28,7 @@ public String getSearchString() {
     public abstract String getSearchSuggestion() throws ParsingException;
 
     protected InfoItemsSearchCollector getInfoItemSearchCollector() {
-        return collector;
+        return new InfoItemsSearchCollector(getService().getServiceId());
     }
 
     @Override

extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/extractors/MediaCCCSearchExtractor.java

@@ -47,8 +47,7 @@ public String getSearchSuggestion() throws ParsingException {
     @Nonnull
     @Override
     public InfoItemsPage<InfoItem> getInitialPage() throws IOException, ExtractionException {
-        InfoItemsSearchCollector searchItems = getInfoItemSearchCollector();
-        searchItems.reset();
+        final InfoItemsSearchCollector searchItems = getInfoItemSearchCollector();
 
         if (getLinkHandler().getContentFilters().contains(CONFERENCES)
                 || getLinkHandler().getContentFilters().contains(ALL)

extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/SoundcloudSearchExtractor.java

@@ -79,7 +79,6 @@ public void onFetchPage(@Nonnull Downloader downloader) throws IOException, Extr
 
     private InfoItemsCollector<InfoItem, InfoItemExtractor> collectItems(JsonArray searchCollection) {
         final InfoItemsSearchCollector collector = getInfoItemSearchCollector();
-        collector.reset();
 
         for (Object result : searchCollection) {
             if (!(result instanceof JsonObject)) continue;