$ git clone -n https://src.fedoraproject.org/rpms/ruby-mecab.git /var/lib/mock/f40-build-2034553-47899/root/chroot_tmpdir/scmroot/ruby-mecab
Cloning into '/var/lib/mock/f40-build-2034553-47899/root/chroot_tmpdir/scmroot/ruby-mecab'...
$ git fetch origin f5d9578dd2c1875572e0cdabad95bd758a2819a8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ruby-mecab
 * [new ref]         f5d9578dd2c1875572e0cdabad95bd758a2819a8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f5d9578 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild