Thanks. Bug received.
Will try to reproduce it and be back.

Expected result
We expect that the checkboxes are checked according to the effective permissions the user has.

I believe these expectations are not that well.
That dropdown is for setting permissions to multiple users at once.
Overriding permissions.

If multiple users have different permissions, how shall we set checkboxes?
Maybe what's missing is some indications about it?

Hello,

Good point.
May be the naming is not ideal then because it's very confusing. Imo, same action should show same result, whatever the way to display it.

If the target of this drop-down is to be used for multiple item, I sugget to make it grey (/unusable) until 2 or more items are selected.
Or put a banner explaining?

Additional note, due to issue 18316 which makes us use the drop-down for one item, this reinforce the feeling about the 1-item + drop-down list gives the same result as the action button

May be the naming is not ideal then because it's very confusing.

Sorry, got lost. Which name?

Imo, same action should show same result, whatever the way to display it.

Agree. No matter how many users you select, mass permission setting it is always showing the checkboxes blanked.
Just to note, mass permission setting is a diffierent action than single user permission setting.

If the target of this drop-down is to be used for multiple item

Could be 1 or many. Usually many, but there is no restriction

Or put a banner explaining?

From your experience, what would the banner should say?

Thanks!

(Sorry, I don't know how to quote)

• Which name?
  Something mentionning that it's meant to "bulk edit". By "confusing", I meant that both actions are named "Edit permissions" but act differently.
  Or keeping the name but only activating it when 2+ items are selected?
  (suggestions only, tricky matter I admit)

• The banner could say something like:
  If 2+ items are selected: "You chose to edit multiple users, their actual permissions are not displayable"
  If 1 item is selected: <no banner> but displaying his permission

The banner could say something like:
If 2+ items are selected: "You chose to edit multiple users, their actual permissions are not displayable"
If 1 item is selected: <no banner> but displaying his permission

@c_schmitz what do yo think about this?

A very usual design pattern for this situation would be to show the normal permission selection screen, but where the user permissions are different among the selected users, the related box(es) should be greyed out.
If the administrator does not check or uncheck these greyed out box(es), the permission will not be changed on these.