"Export as image" works incorrectly for alignments in collapsing mode

Use case 1:

1. Open "COI.aln".
2. Press the "Switch on/off collapsing" button on the toolbar.
3. Select the "Podisma_sapporensis" sequence.
4. Select "Export > Export as image" in the context menu.
   Expected state: The "Export Image" dialog appeared.
5. Select "Custom region" in the region combo box and check "Include sequences names".
6. Press "Export".
   Expected state: The "Podisma_sapporensis" sequence is exported as image.
   Current state: The "Mecopoda_sp._Malaysia" sequence is exported as image.

Use case 2:

1. Open "COI.aln".
2. Press the "Switch on/off collapsing" button.
3. Select "Export > Export as image" in the context menu.
   Expected state: The "Export Image" dialog appeared.
4. Select "Whole alignment" in the region combo box and check "Include sequences names".
5. Press "Export".
   Expected state: the image corresponds to the current view in the Alignment Editor.
   Current state: see the attachment.