$ git clone -n https://src.fedoraproject.org/rpms/emacs-magit.git /var/lib/mock/f40-build-1995350-43894/root/chroot_tmpdir/scmroot/emacs-magit
Cloning into '/var/lib/mock/f40-build-1995350-43894/root/chroot_tmpdir/scmroot/emacs-magit'...
$ git fetch origin a54c77da38237d3c62ac88bfbc56f3fc01baf965:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-magit
 * [new ref]         a54c77da38237d3c62ac88bfbc56f3fc01baf965 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a54c77d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild