$ git clone -n https://src.fedoraproject.org/rpms/techtalk-pse.git /var/lib/mock/f41-build-side-1-2670548-29059/root/chroot_tmpdir/scmroot/techtalk-pse
Cloning into '/var/lib/mock/f41-build-side-1-2670548-29059/root/chroot_tmpdir/scmroot/techtalk-pse'...
$ git fetch origin 4d1b13b1755fbd1aa5d89ffc0be93615390b4f11:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/techtalk-pse
 * [new ref]         4d1b13b1755fbd1aa5d89ffc0be93615390b4f11 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4d1b13b convert GPLv2+ license to SPDX