$ git clone -n https://src.fedoraproject.org/rpms/kf5-kdesu.git /var/lib/mock/f40-build-760252-121033/root/chroot_tmpdir/scmroot/kf5-kdesu
Cloning into '/var/lib/mock/f40-build-760252-121033/root/chroot_tmpdir/scmroot/kf5-kdesu'...
$ git fetch origin 13c304da7440be9251ed165cf7531a799bf4d8f7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kdesu
 * [new ref]         13c304da7440be9251ed165cf7531a799bf4d8f7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 13c304d 5.113.0