[Bug] Pressing Enter after Japanese IME conversion unexpectedly submits the form in Warp.dev

[SugiKent]

Pre-submit Checks

• I have searched Warp bugs and there are no duplicates
• I have searched Warp known issues page and my issue is not there
• I have an issue with AI and have included the debugging ID (Optional, but helps expedite the AI quality fix). Debugging ID intructions
• I have technical issue and have included the logs (optional, but helps expedite the bug fix). Log intructions

Describe the bug

When using Japanese input (IME) in the Warp.dev application, pressing Enter to confirm a conversion unintentionally submits the input form. This prevents users from completing their message or command composition as expected when using Japanese.

To reproduce

1. Open Warp.dev and focus on any input field (such as the command bar or message box).
2. Switch your keyboard to Japanese (IME mode).
3. Type some Japanese characters (e.g., "こんにちは") and convert them using the IME.
4. Press Enter to confirm the character conversion.
5. Observe that the input form is submitted immediately after confirming the conversion, even though the user is not finished typing.

Expected behavior

Pressing Enter to confirm Japanese IME conversion should not submit the form. The form should only be submitted when the user has finished composing and intentionally wants to submit, not during text conversion confirmation.

Screenshots, videos, and logs

No response

Operating system (OS)

macOS

Operating system and version

15.6（24G84）

Shell Version

zsh --version zsh 5.9 (arm64-apple-darwin24.0)

Current Warp version

v0.2025.08.27.08.11.stable_04

Regression

No, this bug or issue has existed throughout my experience using Warp

Recent working Warp date

No response

Additional context

No response

Does this block you from using Warp daily?

Yes, this issue prevents me from using Warp daily.

Is this an issue only in Warp?

Yes, I confirmed that this only happens in Warp, not other terminals.

Warp Internal (ignore): linear-label:b9d78064-c89e-4973-b153-5178a31ee54e

None

[lucieleblanc]

Hi there, thank you for the bug report, and sorry for the issues here. A few questions to help us debug:

• Is Vim editing enabled in your Warp settings?
• Is your terminal input editor in "classic" or "universal" mode?

[SugiKent]

Is Vim editing enabled in your Warp settings?

yes. Vim editing is enabled.

Is your terminal input editor in "classic" or "universal" mode?

I use the "universal" mode.

[lucieleblanc]

Thank you. Is the bug still present if Vim mode is disabled, by any chance?

[SugiKent]

@lucieleblanc Thank you. As you said, the bug seems to be solved when I disabled Vim mode.

Additionally I found that the bug is triggered by pressing enter key after pressing ,(<) key in Vim mode with Japanese IME. I thought if are there some special processings after pressing , in Vim mode.