VBO Export Module Exports Only 10 Results When Using Solr Index Data

Problem/Motivation

When exporting data using the VBO export module with Solr index views, only 10 results are exported, regardless of the number of selected items. Exporting other entities works correctly, but when using a Solr index view with the VBO export option, it exports only 10 items.

Steps to reproduce

1. Create a Solr index view.
2. Add the VBO export option to the view.
3. Select all items in the view.
4. Attempt to export the selected items.

Only 10 items are exported instead of all selected.