Steps to reproduce
first copy a multiple-line code like:
int main() {
return 0;
}
then paste it to a callout, the result will be like:
int main() {
return 0;
}
>
and that will not be correctly handled by the renderer, leading to a strange render result.
### Did you follow the troubleshooting guide? \[Y/N\]
Y
### Expected result
>```cpp
>int main() {
>return 0;
>}
>```
>
### Actual result
>```cpp
int main() {
return 0;
}
