Input with semicolon after multi-line import is corrupted

On this weird but valid input:

```python3
from os import \
    name; print(name)
```

isort (5.10.1 or `main` at c6a41965247a858a0afd848fbebfca18b8983917) produces this invalid output:

```python3
from os import name, name;, print
```