$ git clone -n https://src.fedoraproject.org/rpms/Random123.git /var/lib/mock/f39-build-2141109-50845/root/chroot_tmpdir/scmroot/Random123
Cloning into '/var/lib/mock/f39-build-2141109-50845/root/chroot_tmpdir/scmroot/Random123'...
$ git fetch origin 9d18e75a8aa1011333b5237227db95fe8fb4df23:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/Random123
 * [new ref]         9d18e75a8aa1011333b5237227db95fe8fb4df23 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9d18e75 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild