@ggouillart
Reference : How users inherit allowed indexes
How users inherit allowed indexes
In the case of allowed indexes, the user is given the highest level of access granted to any role to which they are assigned.
For example, if a user is assigned to the role "simple user" which limits access to one particular index, and also to a role "advanced user" which has more capabilities and allows access to all indexes, the user will have access to all indexes. If you wanted to grant the capabilities of the "advanced user" but continue to limit their index access to the single index defined for the "simple user", you should create a new role specifically for that user.
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