Resolve macro's in tags

It would be nice if the tags would be able to resolve macro's.

Use-case:

• Parent host with macro ("TEAM=team_a") set
• Parent host has template assigned which has Discovery Rules
• The Discovery Rules contain Host Prototypes
• The Host Prototype have a tag "team" which resolves to macro `{$TEAM}` 

Since the Prototyped Host already inherits all macro's from the parent, it would be nice if the tag could resolve to the macro value.