$ git clone -n https://src.fedoraproject.org/rpms/libkscreen.git /var/lib/mock/f42-build-3272997-41309/root/chroot_tmpdir/scmroot/libkscreen
Cloning into '/var/lib/mock/f42-build-3272997-41309/root/chroot_tmpdir/scmroot/libkscreen'...
$ git fetch origin d85a96c4a8e0a7ffcc28329088e0116e9ceba3f2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libkscreen
 * [new ref]         d85a96c4a8e0a7ffcc28329088e0116e9ceba3f2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d85a96c 6.3.2