$ git clone -n https://src.fedoraproject.org/rpms/python-dulwich.git /var/lib/mock/f40-build-2213611-52341/root/chroot_tmpdir/scmroot/python-dulwich
Cloning into '/var/lib/mock/f40-build-2213611-52341/root/chroot_tmpdir/scmroot/python-dulwich'...
$ git fetch origin fe2a37937f77dcecf9f66dc9dc5ccc47ac07cb01:KOJI_FETCH_HEAD
fatal: unable to access 'https://src.fedoraproject.org/rpms/python-dulwich.git/': Error in the HTTP2 framing layer
$ git reset --hard fe2a37937f77dcecf9f66dc9dc5ccc47ac07cb01
HEAD is now at fe2a379 Update to latest upstream release 0.21.7 (closes rhbz#2236973)