fix: handle empty strings after event removal in transcription processing (...

TnR2

2025-10-01 528f92f7a2a26cade1c57ccf26b0ba6524e7cae5

1
2
3
4
5
6
7
8
9
I    1
II    2
III    3
IV    4
V    5
VI    6
VII    7
VIII    8
IX    9