$ git clone -n https://src.fedoraproject.org/rpms/g3kb-switch.git /var/lib/mock/f40-build-793974-139322/root/chroot_tmpdir/scmroot/g3kb-switch
Cloning into '/var/lib/mock/f40-build-793974-139322/root/chroot_tmpdir/scmroot/g3kb-switch'...
$ git fetch origin 561ec1e4c38c585dbcf4a6ccf1b7a0637aa7b81f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/g3kb-switch
 * [new ref]         561ec1e4c38c585dbcf4a6ccf1b7a0637aa7b81f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 561ec1e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild