$ git clone -n https://src.fedoraproject.org/rpms/libkscreen.git /var/lib/mock/f41-build-850993-165853/root/chroot_tmpdir/scmroot/libkscreen
Cloning into '/var/lib/mock/f41-build-850993-165853/root/chroot_tmpdir/scmroot/libkscreen'...
$ git fetch origin bfa4543743a6faa50c1b3723c9706dcb8ef5c7bc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libkscreen
 * [new ref]         bfa4543743a6faa50c1b3723c9706dcb8ef5c7bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bfa4543 6.1.90