Selection works wrong in MSA

1. Open "data/samples/CLUSTALW/COI.aln"
2. Select some sequence name in the middle of the name list area
3. Press "Shift" + "Arrow Up"

Expected state: The sequence above the selected has involved into selection
Current state: Nothing happens

4. Press "Shift" + "Arrow Down"

Expected state: The sequence below the selected has involved into selection
Current state: All the sequences above the selected has incorporated into selection