Automatically hide tag hints when the tag is the active thought
When a tag is selected as the active thought, the child thoughts of that tag should not display its tag hint, as this is redundant and creates unnecessary UI clutter.
For example, you have a tag called "Client". Normally, when you view a thought tagged as Client, you want to see the tag hint. However, if the Client tag is the active thought in the plex, by definition, any child thoughts of this tag must be tagged as "Client", so it's ridiculous and messy to display dozens of thoughts all showing the Client tag hint. However, if any of the child thoughts has OTHER tags, those other tag hints SHOULD be displayed, just not the tag hint of the currently selected tag.