$ git clone -n https://src.fedoraproject.org/rpms/gnome-builder.git /var/lib/mock/f40-build-2344738-59931/root/chroot_tmpdir/scmroot/gnome-builder
Cloning into '/var/lib/mock/f40-build-2344738-59931/root/chroot_tmpdir/scmroot/gnome-builder'...
$ git fetch origin 5f8dfd695d23d4f95bd1d3c9281036c839a6c514:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-builder
 * [new ref]         5f8dfd695d23d4f95bd1d3c9281036c839a6c514 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5f8dfd6 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild