a display bug for minicom in windterm

Hello, I found a bug in version 2.6 and the latest 2.7 version. When using WindTerm to access the serial port of a remote server, there is a display issue when using Minicom. It displays some strange content on the line below the cursor. Please refer to the attached image for details.

Start by reproducing the issue in WindTerm 2.6 or 2.7 while connecting to a remote server's serial port and running Minicom; compare the display with the attached image. Trace the terminal rendering path responsible for content below the cursor, and consider the issue done when Minicom's screen renders without the reported stray content.

Written by the indexing model from the issue text.