Bug 514121

SUMMARY
Table View in Album tab does not preserve item selection when resorting columns, which prevents practical comparison workflows (e.g. cross-checking duplicate filenames across multiple file types).

STEPS TO REPRODUCE
1. Open an album in the Album tab and switch to Table View.
2. Sort items by the "Type" column (e.g. JPEG, TIFF, PNG).
3. Select multiple items (for example, all JPEG files).
4. Click another column header, such as "Filename", to resort the table.

OBSERVED RESULT
The current selection is cleared when the table is resorted by another column. Previously selected items are no longer selected.

EXPECTED RESULT
The selection should be preserved across column resorting. After sorting by a different column, the same items (identified by their internal IDs / file paths) should remain selected, even if their visual order changes.

This would allow workflows such as:
- Sorting by Type, selecting one or more file types,
- Then sorting by Filename to visually check for duplicate or corresponding files (e.g. JPEG/TIFF triples) while keeping the selection intact.

SOFTWARE/OS VERSIONS
Windows: —
macOS: —
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: —
KDE Plasma Version: —
KDE Frameworks Version: —
Qt Version: —

ADDITIONAL INFORMATION
This appears to be a UX limitation rather than a crash or data-loss bug. Preserving selection across sorting is common behavior in table views and would significantly improve usability for managing large, mixed-format photo collections.