Allow attributes to only be seen or editable by a group/role
Description
Like how attributes can currently be limited to a certain project or issue type, allow for attributes to only be editable by a group or role.
Use case:
We have a "No Charge" boolean attribute, to indicate that time logged should not be charged for. We do not want the users that log this work to be able to set it. We have a role for billing that we want to be able to set or unset this attribute.
Environment
Activity
Do you also need view permission? I'm considering to implement only editing part of this. I know there may be use cases you don't want others to view what value a worklog attribute is set but it is making handling of worklog attributes a lot more complex. Currently visibility of worklog attribute already depends on a few factors.
In our use case it wouldn't matter if the users that log work could see it or not, just as long as they can't set or unset it.
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