Add method to force counting the found rows

src/Query/FluentQuery.php

@@ -619,6 +619,19 @@ public function paginate( $page, $per_page ) {
 		return $this;
 	}
 
+	/**
+	 * Calculate the total rows found.
+	 *
+	 * @since 2.0.0
+	 *
+	 * @return $this
+	 */
+	public function calc_found_rows() {
+		$this->calc_found_rows = true;
+
+		return $this;
+	}
+
 	/**
 	 * Execute a callback over every row, chunking by a certain number.
 	 *