fix #77

src/Grid/Exporters/AbstractExporter.php

@@ -189,7 +189,6 @@ abstract class AbstractExporter implements ExporterInterface
         $array = $this->grid->processFilter(true);
 
         $model->reset();
-        $model->rejectQuery('forPage');
 
         return $this->callBuilder($array);
     }

src/Grid/Model.php

@@ -140,7 +140,15 @@ class Model
         }
 
         $this->request = $request;
-        $this->queries = collect();
+        $this->initQueries();
+    }
+
+    /**
+     * @return void
+     */
+    protected function initQueries()
+    {
+        $this->queries = new Collection();
     }
 
     /**
@@ -720,5 +728,6 @@ class Model
     {
         $this->data = null;
         $this->model = null;
+        $this->initQueries();
     }
 }

src/Grid/Tools/ExportButton.php

@@ -102,7 +102,7 @@ JS;
         $export = trans('admin.export');
 
         return <<<EOT
-<div class="btn-group dropdown shadow-none" style="margin-right:3px">
+<div class="btn-group dropdown" style="margin-right:3px">
     <button type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown">
         <i class="feather icon-download"></i>
         <span class="d-none d-sm-inline">&nbsp;{$export}&nbsp;</span>