Subject: bug#76317: Emacs 31.0.50 4b28c41c4f2b on feature/igc branch; :window-sides-vertical doesn't take effect

From: martin rudalics <[email-masked]>
Date: Mon, 24 Feb 2025 09:53:12 +0100

> Hello, in the feature/igc branch: 542be52db30: when
 > window-sides-vertical is nil, this bug happen again.
 > Is there some related change happening?

Works with current master.  Can you diff the versions of window.el?

martin