Subject: Re: bug#76517: 31.0.50; feature/igc 6ff509af3d31 crash on Wayland KDE, (with -g3

From: Eli Zaretskii <[email-masked]>
Date: Mon, 24 Feb 2025 17:20:53 +0200

> From: Eval Exec <[email-masked]>
> Date: Mon, 24 Feb 2025 21:58:28 +0800
> Cc: [email-masked]
> 
> Yes, it's header-line:
> header-line-format is a buffer-local variable defined in buffer.c.
> 
> Value in #<buffer 2025.org>
> ((:eval (breadcrumb--header-line)) "")

And what does that produce if you evaluate it:

  M-: (format-mode-line header-line-format) RET

in that buffer?