Small improvements in the search [skip ci]

app/Support/Search/Search.php

@@ -9,7 +9,7 @@
  * See the LICENSE file for details.
  */
 
-declare(strict_types = 1);
+declare(strict_types=1);
 
 namespace FireflyIII\Support\Search;
 
@@ -37,6 +37,8 @@ class Search implements SearchInterface
     private $limit = 100;
     /** @var Collection */
     private $modifiers;
+    /** @var  string */
+    private $originalQuery = '';
     /** @var User */
     private $user;
     /** @var array */
@@ -58,7 +60,10 @@ class Search implements SearchInterface
      */
     public function getWordsAsString(): string
     {
-        return join(' ', $this->words);
+        $string = join(' ', $this->words);
+        if (strlen($string) === 0) {
+            return $this->originalQuery;
+        }
     }
 
     /**
@@ -74,9 +79,10 @@ class Search implements SearchInterface
      */
     public function parseQuery(string $query)
     {
-        $filteredQuery = $query;
-        $pattern       = '/[a-z_]*:[0-9a-z-.]*/i';
-        $matches       = [];
+        $filteredQuery       = $query;
+        $this->originalQuery = $query;
+        $pattern             = '/[a-z_]*:[0-9a-z-.]*/i';
+        $matches             = [];
         preg_match_all($pattern, $query, $matches);
 
         foreach ($matches[0] as $match) {