Adding metadata to tasks that are already saved in taskwarrior.

[fullstopslash]

So I'm familiar with the annotation to add metadata for a new task that's being created. ie.

• Task -- +@context +Tag

My question is this: Is there currently a way to add metadata to a multitude of tasks that are already saved in taskwarrior. Because currently it seems that if I edit the contents of the task TaskWiki will simply add the tag to the title of the task and not add the tag to the tags section. Example being if I do something like this to Task.

• Task #abcdef
  (edit)
• Task -- +@context +Tag #abcdef