ui_out -until '{ "jsonrpc": "2.0", "method": "refresh", "params": [true] }'

# We've jumped to the new version of line 2. Move to the old version so we
# can annotate the old file.
ui_in '{ "jsonrpc": "2.0", "method": "keys", "params": [ "k:git blame<ret>" ] }'
ui_out -until '{ "jsonrpc": "2.0", "method": "refresh", "params": [false] }'

# We should have jumped to the old version of line 2, assert on kak_selection.
ui_in '{ "jsonrpc": "2.0", "method": "keys", "params": [ "x" ] }'
ui_out -until '{ "jsonrpc": "2.0", "method": "refresh", "params": [false] }'