R14 dxf export of LWPOLYLINES is producing SPLINES
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#### Summary:
*.dxf export of LWPOLYLINES is producing SPLINES
#### Steps to reproduce:
<!-- Describe what you did (step-by-step) so we can reproduce: -->
- open Inkscape
- ...
#### What happened?
R14 dxf export of LWPOLYLINES produces SPLINES
#### What should have happened?
R14 dxf export should produce LWPOLYLINES
Sample attachments:
Follow this link for sample files and further information. Thank you.
https://inkscape.org/forums/beyond/export-to-dxf-r14-lwpolyline-producing-splines/#c17575
#### Version Info:
```
- Inkscape: v1.0
- Operating System: Windows
- Operating System version: 10
```
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issue