$ git clone -n https://src.fedoraproject.org/rpms/pdfbox.git /var/lib/mock/f41-build-2593929-25554/root/chroot_tmpdir/scmroot/pdfbox
Cloning into '/var/lib/mock/f41-build-2593929-25554/root/chroot_tmpdir/scmroot/pdfbox'...
$ git fetch origin a3719cb9134ecaaec72309cf745cbb17ff4b54c6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pdfbox
 * [new ref]         a3719cb9134ecaaec72309cf745cbb17ff4b54c6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a3719cb convert ASL 2.0 license to SPDX