JS scripts assume that changing content styles work with content classes

[Curtis Hovey]

While investing some missing content in my development environment, I discovered that the content had the hidden or unseen classes. I pondered why the classes weren't removed since I should be able to see the content, they I noticed that the script was setting style instead. The script assumes it knows all the css rules. This decoupling/disregard for site rules make changing css dangerous when it should always be safe.

Scripts and templates setup content with classes (notably hidden), but some scripts never remove the classes when they are uneeded, instead, they change the style assuming that the class rules never change. At this moment, the bug target official tag editor and the dupe finder work by accident, not by design.

I am marking this bug high because I believe this is the root cause of two regression fixed in June.