regression: a multipolygon shapefile fails to render

[qgib]

Author Name: Mathieu Pellerin - nIRV (Mathieu Pellerin - nIRV)
Original Redmine Issue: 12896
Affected QGIS version: master
Redmine category:map_canvas
Assignee: Marco Hugentobler

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On QGIS master, the attached shapefile fails to render its single multipolygon properly. Instead of rendering all parts of the single multipolygon, the rendering process stops halfway, failing to draw most of it (including, if I'm not wrong, its principal part).

Steps to reproduce:

1. Open QGIS, and create a blank project
2. Add the attached shapefile layer
3. You'll notice most of the canvas will be blank, with the exception of some small polygon parts at the bottom of the canvas

If you open the layer property window and disable simplification, the whole multipolygon is drawn properly. This is a regression that appeared following the geometry improvement commits.

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• cambodia.zip (Mathieu Pellerin - nIRV)

[qgib]

Author Name: Nathan Woodrow (@NathanW2)

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Confirmed here too.

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• assigned_to_id was configured as Marco Hugentobler
• category_id was configured as Digitising

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• category_id was changed from Digitising to Map Canvas

[qgib]

Author Name: Mathieu Pellerin - nIRV (Mathieu Pellerin - nIRV)

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commit 211d28b fixed this regression, closing.

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• resolution was changed from to fixed/implemented
• status_id was changed from Open to Closed
• done_ratio was changed from 0 to 100