Bugs that do not affect the use.

When the Vi command edits a file, it will display the command line that has been operated before, or part of the content before the file was changed (read-only, but annoying).

Start by reproducing the Vi file-editing behavior described in the issue and determine when previous command-line or file content is displayed. Trace the relevant terminal output path and confirm the fix by showing that editing a file no longer displays stale text.

Written by the indexing model from the issue text.