$ git clone -n https://src.fedoraproject.org/rpms/rubygem-mini_magick.git /var/lib/mock/f39-build-1512276-35563/root/chroot_tmpdir/scmroot/rubygem-mini_magick
Cloning into '/var/lib/mock/f39-build-1512276-35563/root/chroot_tmpdir/scmroot/rubygem-mini_magick'...
$ git fetch origin 4564ef347f46659fadec95e228a3e0359bc97d42:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-mini_magick
 * [new ref]         4564ef347f46659fadec95e228a3e0359bc97d42 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4564ef3 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild