To reproduce:
1. Visit a url in a new tab such as `/latest?order=views`
2. Click a topic link
3. Click the back button
Before this patch, you would not be sent back to the latest list.
Now, I am somewhat hesitant to delete code like this, but the [original
commit](https://github.com/discourse/discourse/commit/b2b7f4d90592a70a32c748130f0f82a732cd3090)
explains a situation that I cannot reproduce with the code missing.
I cannot seem to keep the filters as sticky even if I try. At the very
least this is better to commit right now than the currently known broken
situation.
Robin Ward
ed936bcb01