Failed to draw new line and produce a valid output

The line is applied to the Postgis Topology database but producing TopoJSON we get an invalid result.

Border d11c4ec2-92c9-4c0c-ae16-9874d2aa17d8 in layer topo_ar5ngis.edge_attributes_export_fkb50.grense covering surface boundary edges 337511 also extends to edge 323586 at POINT(8.010830813820425 63.42879550691327)

Creating testcase to see it it's possible to reproduce