all features disappear when editing layer feature(s) under {categorized,graduated,rule-based} symbology

[qgib]

Author Name: Mathieu Pellerin - nIRV (Mathieu Pellerin - nIRV)
Original Redmine Issue: 7660
Affected QGIS version: master

Assignee: Martin Dobias

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That should be fixed prior to 2.0, pretty scary behavior. When a layer symbology is set to categorized, graduated, or rule-based, all features will disappear when editing feature(s) on that layer. If the user then leave the edit mode (saving changes or not), all features will reappear.

Steps to reproduce:

1. Load the attached shapefile (featuresgone.shp) into a new project
2. Open the featuresgone layer property window, switch style to categorized (using 'blah' column), and apply
3. Toggle edit mode on for the featuresgone layer
4. Move a feature with the node tool

At that stage, only the feature moved will remain visible, all the other features are gone. The features are still there, simply not drawn. Saving the layer by leaving the edit mode will re-draw all features.

Data stays, but it's super scary behavior :)

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• featuresgone.zip.zip (Mathieu Pellerin - nIRV)

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Related issue(s): #16425 (duplicates)
Redmine related issue(s): 7472

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[qgib]

Author Name: Giovanni Manghi (@gioman)

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confirmed here.

[qgib]

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

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Forgot to mention that there is an error that shows up in the log window when going through the steps above which says: "Already active iterator on this provider was closed".

[qgib]

Author Name: Olivier Dalang (@olivierdalang)

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It seems this was already reported twice :
#16310
#16425

[qgib]

Author Name: Nathan Woodrow (@NathanW2)

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• assigned_to_id was configured as Martin Dobias

[qgib]

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

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Closing as this is reported already in other bugs, main one being #16425.

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• resolution was changed from to duplicate
• status_id was changed from Open to Closed