cubicweb #683903 clear attribute permissions handling [resolved]

currently we 'add', 'delete', 'read' as for relation, while it expects ERQLExpression to be used. Should find a way to have simply 'read', 'update' and use ERQLExpr.

prioritynormal
typebug
done in3.6.1
load1.000
load left0.000
closed by<not specified>