Allow administrators to set the default sharing level of new requests

Problem Definition

At the moment, there's no option to configure the default share preference of a ticket. When the reporter belongs to an Organisation, their request will be shared among the organisation unless they change it to "Private request" manually. This could lead to accidental oversharing if they forgot to set to "Private request".

Also, a notification will be sent to all users within the organisation if "share with Organisation" option is accidentally chosen.
By default the sharing level of new requests is "Private", it should be possible to set a project-level default for this field to share the request with the user's assigned organisation.

In the event that a user is a member of more than one organisation, then the field should default to "Private" to avoid accidental oversharing.

Suggested Solution

• Allow admin to set the default level as Issue Security Level.

Why this is important

• To avoid accidental oversharing of data
• To avoid spam notification within the organisation