Can't classify based on joined column

[qgib]

Author Name: Christopher Young (Christopher Young)
Original Redmine Issue: 11850
Affected QGIS version: 2.6.0
Redmine category:symbology

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Cannot seem to classify based on joined column. If classify instead using concat("") works just fine.

Steps to reproduce:

1. Join a layer to another.
2. Attempt to classify based on one of the joined columns. (Properties > Style)

Expected result: Distinct values for column shown
Actual result: no values show

[qgib]

Author Name: Giovanni Manghi (@gioman)

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It works fine here, please attach sample data, it may depend on what formats you are using.

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• priority_id was changed from High to Normal
• status_id was changed from Open to Feedback
• category_id was configured as Symbology

[qgib]

Author Name: Giovanni Manghi (@gioman)

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closing for lack of feedback.

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• resolution was changed from to not reproducable
• status_id was changed from Feedback to Closed