Why doesn't my long command wrap in the terminal, and how can I fix it?

I'm wondering why entering long commands doesn't wrap to the next line and causes some frustrating input issues. Is there a way to fix this problem?

The issue provides only a screenshot and describes long-command wrapping and input problems; it names no file, test, or entry point. Start by reproducing the behavior in the terminal with a long command, then identify the relevant terminal input or rendering area. Done means long commands wrap correctly without input issues.

Written by the indexing model from the issue text.