$ git clone -n https://src.fedoraproject.org/rpms/kf5-kidletime.git /var/lib/mock/f40-build-2556438-62039/root/chroot_tmpdir/scmroot/kf5-kidletime
Cloning into '/var/lib/mock/f40-build-2556438-62039/root/chroot_tmpdir/scmroot/kf5-kidletime'...
$ git fetch origin 2b4acd32d968ae73be3319db2d92993b1b433d58:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kidletime
 * [new ref]         2b4acd32d968ae73be3319db2d92993b1b433d58 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2b4acd3 5.115.0