Spinner/status indicator text bleeds into command output

Question

When running multi-line bash commands (e.g. `git merge --no-ff`), the spinner/status indicator text leaks into the rendered output.

For example, the merge output renders as:
```
PuzMerge made by the 'ort' strategy.
```
instead of:
```
Merge made by the 'ort' strategy.
```

The "Puz" prefix appears to be residual spinner characters that weren't cleared before the command output was printed.

**Steps to reproduce:**
1. Run a `git merge --no-ff` with a multi-line commit message via heredoc inside