$ git clone -n https://src.fedoraproject.org/rpms/pcp2pdf.git /var/lib/mock/f41-build-side-1-2650519-27600/root/chroot_tmpdir/scmroot/pcp2pdf
Cloning into '/var/lib/mock/f41-build-side-1-2650519-27600/root/chroot_tmpdir/scmroot/pcp2pdf'...
$ git fetch origin 96bc3eb9e8878a6e2db9d4b3016f433d5aa5f1fb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pcp2pdf
 * [new ref]         96bc3eb9e8878a6e2db9d4b3016f433d5aa5f1fb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 96bc3eb convert GPLv2+ license to SPDX