Author: mike.lifeguard+bugs
Description:
If a user from another wiki has had some of their edits imported, anyone who creates that account will have those edits attributed to them (possibly this will be incorrect!)
Ghost accounts (with imported edits, but which have never been created) should not be permitted to be created unless the user has a global account which includes all wikis where the imported edits came from. So if User:A@enwikibooks consists of edits imported from User:A@enwiki and User:A@meta, then it should be joined to User:A@global if they "own" (as defined by SUL) the accounts at enwiki and meta. If not, then some bureaucrat/SUL admin/steward/whatever intervention should be able to override this, and force the account to be merged (as appropriate).
Until then (SUL merge time for the involved accounts) the account User:A@enwikibooks should not be possible to create, as this makes it possible for edits to be incorrectly attributed. Again, it'd be ideal if this could be overridden by bureaucrats/SUL admin/steward/whatever.
Version: unspecified
Severity: major