Sequence reverse transformation doesn't work

1. Open file "test/_common_data/fasta/fa1.fa"
2. Call context menu on the sequence view

{ Edit sequence -> Reverse sequence }

Expected state: nucleotides order has reversed
Current state: nothing happens

Also if you select

{ Edit sequence -> Reverse complement sequence }

the sequence transforms to complement but not reversed to the initial one.

The issue is based on a user's feedback in our vk public page: http://vk.com/uniprougene?w=wall-74359225_214