a4455eab77
User preferences are held in memory in the accounts cache, but can be stale in a multi-master configuration due to writes being handled on a different server process. Paper over the lack of cache coherency by reading the preferences from the database anytime they are requested through the RPC or REST APIs. Change-Id: I2a14e1f50e908a1d5ea5628e5a05e392be2e0d42