Modify tests to adjust for change in defaults in setting id for connections.
Modify tests to adjust for change in defaults in setting id for connections.

nickerso/libcellml,hsorby/libcellml,hsorby/libcellml,cellml/libcellml,hsorby/libcellml,nickerso/libcellml,cellml/libcellml,nickerso/libcellml,hsorby/libcellml,cellml/libcellml,cellml/libcellml,nickerso/libcellml