layer tree embedded widgets do not show up for raster layers

[qgib]

Author Name: Ricardo Silva (Ricardo Silva)
Original Redmine Issue: 19964
Affected QGIS version: 3.3(master)
Redmine category:map_legend

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When adding a widget to a raster layer's legend via the layer properties'->legend section nothing is shown on the layer tree.

This works OK for vector layers though.

This issue was originally discussed on QGIS dev mailing list. See this thread for more context:

https://lists.osgeo.org/pipermail/qgis-developer/2018-September/054662.html

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Related issue(s): #26496 (relates)
Redmine related issue(s): 18608

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[qgib]

Author Name: Ricardo Silva (Ricardo Silva)

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• relates was configured as Layer tree embedded widgets do not show up unless you move layer #26496

[qgib]

Author Name: Alessandro Pasotti (@elpaso)

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