$ git clone -n https://src.fedoraproject.org/rpms/python-pdfrw.git /var/lib/mock/f45-build-31920-656/root/chroot_tmpdir/scmroot/python-pdfrw
Cloning into '/var/lib/mock/f45-build-31920-656/root/chroot_tmpdir/scmroot/python-pdfrw'...
$ git fetch origin 3e57e5498a9416e19bfd8f3096b59a2bc2c2494e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pdfrw
 * [new ref]         3e57e5498a9416e19bfd8f3096b59a2bc2c2494e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3e57e54 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild