List of steps to reproduce (step by step, including full links if applicable):
It shows a page with noarticletext/noarticletextanon even if the page is creatable.
(Also reproducible at https://zh.wikipedia.org/w/index.php?title=Wikipedia:123123&action=edit&redlink=1, though you need an autoconfirmed account there as such page can only be created by autoconfirmed users in zhwiki)
What should have happened instead?:
It should open a page creating that title. Compare https://zh.wikipedia.org/w/index.php?title=123123&action=edit&redlink=1 and https://zh.wikipedia.org/w/index.php?title=123123&action=edit&redlink=1, both are titles you can create.
Software version (if not a Wikimedia wiki), browser information, screenshots, other information, etc: