Fix invalid migration.

The original version of this migration happened to work correctly, by accident, for databases with exactly one login. I missed this, and so did Kit, because both of our test databases _actually do_ contain exactly one login, and because I didn't run the tests before committing the migration.

The fixed version works correctly for all scenarios I tested (zero, one, and two users, not super thorough). I've added code to patch out the original migration hash in databases that have it; no further corrective work is needed, as if the migration failed, then it got backed out anyways, and if it succeeded, you fell into the "one user" case.

0 files changed, 0 insertions, 0 deletions