[fix] fix empty asr result (#1794)

Xingchen Song(宋星辰)

2024-06-07 93a02feda1848531a48a1794a8de12a962c84a8e

1
2
3
4
5
6
7
8
9
c    1
cc    2
ccc    3
cd    4
d    5
dc    6
dcc    7
dccc    8
cm    9