simplified circular arcs result in invalid geometries #1480
Description
ldproxy Version
4.5.0
Current Behavior
If geometries with circular arcs are simplified in the feature pipeline (through the maxAllowableOffset option, e.g., for generating vector tiles), the coordinates are linearized and simplified, but the geometry type is still set to CIRCULAR_STRING, not LINE_STRING.
Expected Behavior
Linearized curve segments are represented as LINE_STRING.
Steps to Reproduce
Request a feature with a CIRCULAR_STRING in the geometry with the zoom-level parameter.