QGIS » QGIS Application

I noticed a few problems while adding embed layers or groups:

• if you add a layer which ID already exist in the project, no layer is added without any feedback to the user (1)
• if you duplicate a project, and from another one add twice the same group, QGIS freezes (2)
• if a embed layer disappears in the external project it is not removed from the map layer list in the project (3)

1. it seems that the id is not accessible in QgsProject::createEmbedLayer (line 1661)
2. it seems to freeze in QgsLegendItem::insertChild at QTreeWidgetItem::insertChild( index, child );
3. although not sure, this is considered as a bug since the layer might reappear? Anyway, you might get into troubles with (1)

At first, this might not sound a common situation to have similar layer ids. But, it might happen if you have different data sets of the same structure and want to see them in a central project.

Not sure it is worth spending time on it since Martin will re-do the legend.