$ git clone -n https://src.fedoraproject.org/rpms/diffmark.git /var/lib/mock/f31-build-59013-28525/root/chroot_tmpdir/scmroot/diffmark
Cloning into '/var/lib/mock/f31-build-59013-28525/root/chroot_tmpdir/scmroot/diffmark'...
$ git reset --hard b6ff4a999313f2e03609364317dc3f879ee1aa23
HEAD is now at b6ff4a9 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild