New wiki in a group changed other existing wiki's in the group

What do you mean by edits - can you share specifically what was customized? Widget changes? Theme changes? 

Can you share screenshots of what the wiki was before, what the new one looks like and what the old one has changed to now?

Hi,  . We have attached five images that will help tell the story:

Under applications, we set up a New application for PowerPoint templates.

We then edited the wiki template to meet our requirements.

We viewed an older application called Diversity.

When we viewed it, it had the same content as the new PowerPoint templates wiki application.

The original Diversity page is still available, but the application has now changed to match the new PowerPoint templates wiki application.

Our expectation was that these would have maintained there original layout and not overwritten. Other wiki applications have also been overwritten with the new PowerPoint templates wiki.

  These are some of  the wiki applications that are available. "PowerPoint templates" is new. "Diversity" already existed.

 This is the style of the PowerPoint templates wiki page.

 If you view the "Diversity" wiki application, it has been overwritten by the PowerPoint template wiki.

 Here is the original structure of the "Diversity" wiki page.

When you say "edited the wiki template" - I'm guessing you edited the page via Manage > Edit Group Theme > Edit this Page? In that case, the page edits apply to all similar pages within the Group - note that you are editing the Group Theme, not the Wiki theme.

A few options for you:

• For your powerpoint template use case, you might look at using a Media Gallery instead of a Wiki to house these. Media Gallery page changes won't cross with Wiki page changes.
• You could create a separate group, as group is the most granular level of theme control you have when adjusting theme for Wiki pages.
• If you are interested in customizing further, you can look at the Developer Training for Themes, specifically implementing IThemeableApplicationType for Wikis.
• Community version 12.0 introduced Articles, which are separately themeable out-of-the-box. If you are able I would recommend upgrading and converting your Wiki usage to Articles.

Thanks, Steven. Let me try the group method in the near term. Thanks for the feedback on articles versus wiki usage that is available in 12.0.