When using the "Select all" checkbox on the Virtual Machines page, the selection logic fails to maintain a consistent state. Initially, it selects only the VMs on the current page. However, clicking the checkbox a second time (intended to deselect) instead selects VMs on other pages while simultaneously deselecting the VMs on the active page.

Always

1. Navigate to the Virtual Machines page.
2. Ensure the list has enough entries to span across multiple pages.
3. Click the "Select all" checkbox in the table header.
4. Observe the selection on the current page.
5. Click the "Select all" checkbox a second time. 

- Initial click: Only VMs on the current page are selected.
- Second click: VMs on the current page are deselected, but VMs on all other pages are now selected.

- Initial click: All VMs on the current page are selected.
- Second click: All VMs on the current page are deselected.