- Open "COI.aln".
- Set the consensus type to "Levitsky".
- Add an additional sequence from file: "test/_common_data/fasta/amino_ext.fa".
- Open the "Export consensus" OP tab.
- Press "Undo" button.
- Press "Redo" button.
Current state: a SAFE_POINT is triggered.
Expected state: the tab is successfully updated.