[question][feature request] Do we need one more positional parameter

Hi there,
Test data from wayback machine and noted the next **actual behavior**:
```bash
echo "fr/prendre-rendez-vous?pageId" | qsreplace http://127.0.0.1:8080
fr/prendre-rendez-vous?pageId=http%3A%2F%2F127.0.0.1%3A8080
```
I **expected** the behavior to be:
```bash
fr/prendre-rendez-vous?pageId=http://127.0.0.1:8080
```
Any ideas? Please share your thoughts! Thanks!