But I have to admit: even if refreshing Page 1 solves
the problem, it
seems to me you should *not* have to do it.
This assumption is WRONG.
I can reproduce "the problem".
1. Edit a page, creating [[Test]]
2. Save the page
3. Clicking on "Test", edit & save the page
4. Go back, using "Back" in my browser
=> The link is still red, until I refresh the page. This is totally normal.
When I DO NOT refresh the page and click the red link instead, then my
previously entered Text is displayed in "Edit-Mode".
Since the red link is:
http://mw.domain.tld/index.php?title=Test&action=edit&redlink=1
This is totally normal, too.
Conclusion: There is no problem, it's normal behaviour.
Best regards,
Claus