$ git clone -n https://src.fedoraproject.org/rpms/rst2pdf.git /var/lib/mock/f45-build-34689-690/root/chroot_tmpdir/scmroot/rst2pdf
Cloning into '/var/lib/mock/f45-build-34689-690/root/chroot_tmpdir/scmroot/rst2pdf'...
$ git fetch origin 26ea4f91faaec90382a91751584ce8cfb32bea20:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rst2pdf
 * [new ref]         26ea4f91faaec90382a91751584ce8cfb32bea20 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 26ea4f9 Patched for using Reportlab 5