Zombie Tags on reorder

[bwickham01]

This appears to be related to issue 4403 but a slightly different presentation. We stumbled on this after seeing the [] in the blank tag fields as noted in 4403.

When a user adds a tag to any component in the list then reorders the list it applies the tag to all items. Further even if all rows in the tags and taggables tables are deleted from the database, reordering brings back the tag.

I was able to confirm this on my dev and a production instance along with the 2.4.1 demo instance (https://demo.cachethq.io/).

Steps to Reproduce

• Add a tag to a component
• Drag and drop to reorder the component.