fix: Backspace bug when current block is empty and previous block's last child is empty #7176
| Job | Run time |
|---|---|
| 2m 53s | |
| 1m 43s | |
| 3m 22s | |
| 3m 7s | |
| 4m 13s | |
| 2m 42s | |
| 3m 50s | |
| 3m 21s | |
| 47s | |
| 25m 58s |
| Job | Run time |
|---|---|
| 2m 53s | |
| 1m 43s | |
| 3m 22s | |
| 3m 7s | |
| 4m 13s | |
| 2m 42s | |
| 3m 50s | |
| 3m 21s | |
| 47s | |
| 25m 58s |