Wrong pagination is displayed if all elements of search result should be displayed on one page

[Nikolai Stoliar]

1. Open CRUD-editor;
2. select "All" value in "Result per page" field;
3. make search;
4. pay attention on pagination.
   Result: navigation arrows are not hidden; -1 value is displayed in "Result per page" field.

[Egor Stambakio]

Fixed in #130