ghost install local is broken because it's using MySQL

[ErisDS]

ghost install local is automatically setting MySQL:

"database": {
"client": "mysql"
}

And then erroring:

 ✔ Setting up instance
✖ Running database migrations
An error occurred.
Message: 'The server has encountered an error.'


Debug Information:
    Node Version: v6.10.3
    Ghost-CLI Version: 1.0.0-beta.6
    Environment: development
    Command: 'ghost install local'

Additional log info available in: /Users/hannah/.ghost/logs/ghost-cli-debug-2017-07-09T16_03_15_655Z.log

Log file contents

An error occurred.
Message: 'The server has encountered an error.'

Stack: InternalServerError: The server has encountered an error.
    at new KnexMigrateError (/Users/hannah/Ghost/Ghost-CLI/node_modules/knex-migrator/lib/errors.js:7:26)
    at /Users/hannah/Ghost/Ghost-CLI/node_modules/knex-migrator/lib/database.js:58:19
    at tryCatcher (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/util.js:16:23)
    at Promise._settlePromiseFromHandler (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/promise.js:512:31)
    at Promise._settlePromise (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/promise.js:569:18)
    at Promise._settlePromise0 (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/promise.js:614:10)
    at Promise._settlePromises (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/promise.js:689:18)
    at Async._drainQueue (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/async.js:133:16)
    at Async._drainQueues (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/async.js:143:10)
    at Immediate.Async.drainQueues (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/async.js:17:14)
    at runCallback (timers.js:672:20)
    at tryOnImmediate (timers.js:645:5)
    at processImmediate [as _immediateCallback] (timers.js:617:5)

Error: ER_DBACCESS_DENIED_ERROR: Access denied for user ''@'localhost' to database 'undefined'
    at Query.Sequence._packetToError (/Users/hannah/Ghost/Ghost-CLI/node_modules/mysql/lib/protocol/sequences/Sequence.js:52:14)
    at Query.ErrorPacket (/Users/hannah/Ghost/Ghost-CLI/node_modules/mysql/lib/protocol/sequences/Query.js:77:18)
    at Protocol._parsePacket (/Users/hannah/Ghost/Ghost-CLI/node_modules/mysql/lib/protocol/Protocol.js:280:23)
    at Parser.write (/Users/hannah/Ghost/Ghost-CLI/node_modules/mysql/lib/protocol/Parser.js:75:12)
    at Protocol.write (/Users/hannah/Ghost/Ghost-CLI/node_modules/mysql/lib/protocol/Protocol.js:39:16)
    at Socket.<anonymous> (/Users/hannah/Ghost/Ghost-CLI/node_modules/mysql/lib/Connection.js:103:28)
    at emitOne (events.js:96:13)
    at Socket.emit (events.js:188:7)
    at readableAddChunk (_stream_readable.js:176:18)
    at Socket.Readable.push (_stream_readable.js:134:10)
    at TCP.onread (net.js:547:20)
    --------------------
    at Protocol._enqueue (/Users/hannah/Ghost/Ghost-CLI/node_modules/mysql/lib/protocol/Protocol.js:141:48)
    at Connection.query (/Users/hannah/Ghost/Ghost-CLI/node_modules/mysql/lib/Connection.js:208:25)
    at /Users/hannah/Ghost/Ghost-CLI/node_modules/knex/lib/dialects/mysql/index.js:152:18
    at Promise._execute (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/debuggability.js:300:9)
    at Promise._resolveFromExecutor (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/promise.js:483:18)
    at new Promise (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/promise.js:79:10)
    at Client_MySQL._query (/Users/hannah/Ghost/Ghost-CLI/node_modules/knex/lib/dialects/mysql/index.js:146:12)
    at Client_MySQL.query (/Users/hannah/Ghost/Ghost-CLI/node_modules/knex/lib/client.js:197:17)
    at Runner.<anonymous> (/Users/hannah/Ghost/Ghost-CLI/node_modules/knex/lib/runner.js:146:36)
    at Runner.tryCatcher (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/util.js:16:23)
    at Runner.query (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/method.js:15:34)
    at /Users/hannah/Ghost/Ghost-CLI/node_modules/knex/lib/runner.js:65:21
    at tryCatcher (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/util.js:16:23)
    at /Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/using.js:185:26
    at tryCatcher (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/util.js:16:23)
    at Promise._settlePromiseFromHandler (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/promise.js:512:31)
    at Promise._settlePromise (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/promise.js:569:18)
    at Promise._settlePromise0 (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/promise.js:614:10)
    at Promise._settlePromises (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/promise.js:693:18)
    at Promise._fulfill (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/promise.js:638:18)
    at PromiseArray._resolve (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/promise_array.js:126:19)
    at PromiseArray._promiseFulfilled (/Users/hannah/Ghost/Ghost-CLI/node_modules/bluebird/js/release/promise_array.js:144:14)
Code: ER_DBACCESS_DENIED_ERROR