Michael Buschbeck authored Jun 01, 2020 and Martin Owens committed Jun 01, 2020

After encountering a "z" command, Path.transform() continued at the
closed path's untransformed start coordinates both in untransformed and
transformed space, messing up any relative command that followed.

This change keeps track of the transformed starting point of the current
sub-path (in addition to the untransformed) so that "z" can move the
current position to the correct place in transformed space, too.