$ git clone -n https://src.fedoraproject.org/rpms/python-dulwich.git /var/lib/mock/f31-build-102431-33541/root/chroot_tmpdir/scmroot/python-dulwich
Cloning into '/var/lib/mock/f31-build-102431-33541/root/chroot_tmpdir/scmroot/python-dulwich'...
$ git reset --hard b83ff3f1c0f0e59bf2d15e4c5ab53b639346d0d3
HEAD is now at b83ff3f * Mon Aug 19 2019 Fabian Affolter <mail@fabian-affolter.ch> - 0.19.12-1 - Update to new upstream version 0.19.12