Format for log timestamps advanced setting does not work

Bug report

Thanks for filing an issue! Please answer the questions below so I can help you.

• iTerm2 version: 3.5.13

• OS version: MacOS 14.7.1

• Attach ~/Library/Preferences/com.googlecode.iterm2.plist here (drag-drop from finder into this window) com.googlecode.iterm2.plist

• Attach a debug log, if possible. I think there's no point in generating a debug log for this problem.

• Attach a screen capture video if it would make the reproduction steps clearer. Screen_Recording_2025-05-08_at_21.35.49_720p

PLEASE ATTACH YOUR PLIST FILE FOR BUG REPORTS! Seriously! I'll probably ask you for it if you don’t.

I have attached ~/Library/Preferences/com.googlecode.iterm2.plist as instructed above. Hope that's what's asked for here.

Detailed steps to reproduce the problem

See the attached screen capture video.

What happened

See the attached screen capture video.

What should have happened

See the attached screen capture video.

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