After creating a post in AskMeFi, the site appearance switches to regular MetaFilter

[wrose504]

Describe the bug
After creating a post in AskMeFi, the site appearance switches to regular MetaFilter.

To Reproduce
Steps to reproduce the behavior:

1. Go to AskMeFi as a logged-in member.
2. Create a new post.
3. Observe the color scheme and header has changed to regular MeFi from AskMeFi.

Expected behavior

I expected to stay on the AskMeFi subsite - i.e. theme colors and site headers should remain intact.

Screenshots

Expected appearance - view seen after navigating to AskMeFi again and clicking the post link.

Actual appearance - view shows AskMeFi post within the main site.