Make an additional change the leads to a reduction in score
Hit the "revert to best alignment" button
Observed behaviour: The forward button is greyed out, and the backward button takes me to a surprising state.
Expected behaviour: The "revert to best alignment" button should be equivalent to hitting the undo button repeatedly until I get to my best alignment. From that state, the undo and redo buttons should take me respectively to the states preceding and following that state in my history.
A related point: If my history contains multiple states that are tied for the best score, then the revert to best should cycle through all the states with this high score, to let me pick the one I like best.
Steps to reproduce problem:
Observed behaviour: The forward button is greyed out, and the backward button takes me to a surprising state. Expected behaviour: The "revert to best alignment" button should be equivalent to hitting the undo button repeatedly until I get to my best alignment. From that state, the undo and redo buttons should take me respectively to the states preceding and following that state in my history.
A related point: If my history contains multiple states that are tied for the best score, then the revert to best should cycle through all the states with this high score, to let me pick the one I like best.