$ git clone -n https://src.fedoraproject.org/rpms/python-img2pdf.git /var/lib/mock/f40-build-2576876-62280/root/chroot_tmpdir/scmroot/python-img2pdf
Cloning into '/var/lib/mock/f40-build-2576876-62280/root/chroot_tmpdir/scmroot/python-img2pdf'...
$ git fetch origin 3f170cefeca8743e8c651a0d5c059538aac05b4a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-img2pdf
 * [new ref]         3f170cefeca8743e8c651a0d5c059538aac05b4a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3f170ce bump to 0.5.1 upstream