Re-creating a space under the same name gives you access to it again
Deleting a space and then creating a new one with the same name could leave you locked out of your own space: the space was created, it said it was yours, and the first page you tried to add to it was refused with "Access denied: Create permission required". Waiting and trying again worked, which is what made it so hard to pin down.
Behind every permission decision on a space there is one cached list of that space's grants, shared across the whole portal. Deleting a space removes its database entirely — but the cached list of its grants was left behind. A new space created under the same name was then judged against the old space's list, which had just been emptied, and it only learned about your new ownership grant a moment later, when the change reached it. If your next write arrived first, it was refused.
Deleting a space now clears the cached lists that belonged to it, along with the live database subscriptions behind them. The next decision about that name is made from the grants the new space actually has — the same way a space created for the first time has always worked. Grants that belong to the whole portal rather than to one space are untouched.
Nothing to do; the fix applies to every space, user home and other partition root.