Using Emacs version 30.0.50 on macOS, reported by "emacs-version" as
GNU Emacs 30.0.50 (build 1, x86_64-apple-darwin18.7.0, NS appkit-1671.60 Version 10.14.6 (Build 18G95)) of 2023-01-09
for the “emacs-nightly” Homebrew formula, I find that this failure still occurs regularly, whether or not the frame being closed was full-screen or not. Specifically, when magit opens a new frame to capture a Git commit message, and I complete the message by pressing “C-c C-c,” the frame closes, and then Emacs crashes.
Please find the captured crash report attached here.