`gum input` shows second prompt

[alex-on-java]

Describe the bug
When running gum input, the prompt line initially appears once, then within ~1 second a duplicate second line appears below it. The cursor only blinks on the second line. After pressing enter, the duplicate line disappears, leaving only the input line.

Steps to reproduce the behavior

1. Run gum input in terminal
2. Observe initial single prompt line
3. Wait ~0.5 second - duplicate second prompt line appears
4. Note that cursor only blinks on second line
5. Press enter - duplicate disappears

Expected behavior
A single, stable prompt line should appear immediately and remain throughout the input session. The cursor should blink on that single line only. There is no extra line between prompt and enter submit hint.

Screenshots
See attached screenshots showing:

• Image 1: Initial state with single prompt line
  • 
• Image 2: Duplicate prompt line appearing (~0.5 second later)
  • 
• video demonstration to show the timing and behavior more clearly.

Desktop

• OS: macOS 15.7.1 (Sequoia)
• Terminal: Apple Terminal (xterm-256color)
• gum Version: 0.17.0

Additional context
The duplicate line appears to be a rendering/refresh issue. The duplicate prompt shows the same text "Type something..." while the original prompt updates normally. Only the second line is interactive (cursor blinks there). After input submission, the display returns to normal single-line behavior.

[g-lok]

This happens to me as well. It's specifically a Mac terminal issue, as this doesn't occur in Alacritty or Iterm2 or nicer terminal emulators. Unfortunately my scripts are meant for people to run on fresh environments, or just people who won't have a real terminal installed, so gum looks borked.

[twelvelabs]

Potential dupe of #895 . Supposedly fixed by charmbracelet/bubbles#816 but that PR appears stalled.

Unfortunately my scripts are meant for people to run on fresh environments, or just people who won't have a real terminal installed, so gum looks borked.

Same. Surprised that this has been broken for so long. Seems like someone would have noticed by now 🤷 .