BUG: Generation workflow bugs with tags

[JoelWiebe]

Bug

Overview
When creating posts in the Workspace, posts created with tags are not displayed on the canvas. If the final post created has a tag then the task fails to be marked as complete.

To Reproduce
Steps to reproduce:

1. Create a generation task workflow and set the destination as the canvas and set the generation number to two or more
2. In the workspace, complete the task as a member of the assigned group, adding a tag to each post before submitting
3. Verify whether posts with a tag are displayed on the canvas (this may be resolved); but if the last post generated for the generation task was created with a tag, then the task will not be moved from active to completed