Back to the original topic:
It is not true that refilling the zone in 5.1 will result in it being converted to polygon fill.
Also note that even 5.1 still exports segmented fill zones as overlapping lines:
---
Version 4.0.6 project and export + screenshot in kicads gerbviewer (from version 4)
<a class="attachment" href="//kicad-info.s3.dualstack.us-west-2.amazonaws.com/original/2X/d/daba63a51b050da50d83e5a15b1c794ed890f838.zip">test_zone_fill.zip</a> (203.6 KB)
https://kicad-info.s3.dualstack.us-west-2.amazonaws.com/original/2X/7/7269096424b24d8d1f684d16ccf22f439d3fa1f8.png
Version 5.1 gerber and again a screenshot of the gerbers (made again in the version 4 gerber viewer to ensure all other settings are equal)
<a class="attachment" href="//kicad-info.s3.dualstack.us-west-2.amazonaws.com/original/2X/8/853ec72dbdb290e7167b0364b04786bc0178af91.zip">gerber_v5.1.zip</a> (2.5 KB)
https://kicad-info.s3.dualstack.us-west-2.amazonaws.com/original/2X/5/521427579cde4acb6cdcc26332b288f4c34df666.png
Back to the original topic:
It is not true that refilling the zone in 5.1 will result in it being converted to polygon fill.
Also note that even 5.1 still exports segmented fill zones as overlapping lines:
---
Version 4.0.6 project and export + screenshot in kicads gerbviewer (from version 4)
<a class="attachment" href="/ /kicad- info.s3. dualstack. us-west- 2.amazonaws. com/original/ 2X/d/daba63a51b 050da50d83e5a15 b1c794ed890f838 .zip">test_ zone_fill. zip</a> (203.6 KB)
https:/ /kicad- info.s3. dualstack. us-west- 2.amazonaws. com/original/ 2X/7/7269096424 b24d8d1f684d16c cf22f439d3fa1f8 .png
---
Version 5.1 gerber and again a screenshot of the gerbers (made again in the version 4 gerber viewer to ensure all other settings are equal)
<a class="attachment" href="/ /kicad- info.s3. dualstack. us-west- 2.amazonaws. com/original/ 2X/8/853ec72dbd b290e7167b0364b 04786bc0178af91 .zip">gerber_ v5.1.zip< /a> (2.5 KB)
https:/ /kicad- info.s3. dualstack. us-west- 2.amazonaws. com/original/ 2X/5/521427579c de4acb6cdcc2633 2b288f4c34df666 .png