Do cache space members in member_cache

src/d2m/actions/register-pk-user.js

@@ -33,7 +33,7 @@ async function createSim(pkMessage) {
 	const mxid = `@${localpart}:${reg.ooye.server_name}`
 
 	// Save chosen name in the database forever
-	db.prepare("INSERT INTO sim (user_id, sim_name, localpart, mxid) VALUES (?, ?, ?, ?)").run(pkMessage.member.uuid, simName, localpart, mxid)
+	db.prepare("INSERT INTO sim (user_id, username, sim_name, mxid) VALUES (?, ?, ?, ?)").run(pkMessage.member.uuid, simName, simName, mxid)
 
 	// Register matrix user with that name
 	try {

src/d2m/actions/register-user.js

@@ -33,7 +33,7 @@ async function createSim(user) {
 
 	// Save chosen name in the database forever
 	// Making this database change right away so that in a concurrent registration, the 2nd registration will already have generated a different localpart because it can see this row when it generates
-	db.prepare("INSERT INTO sim (user_id, sim_name, localpart, mxid) VALUES (?, ?, ?, ?)").run(user.id, simName, localpart, mxid)
+	db.prepare("INSERT INTO sim (user_id, username, sim_name, mxid) VALUES (?, ?, ?, ?)").run(user.id, user.username, simName, mxid)
 
 	// Register matrix user with that name
 	try {

src/d2m/converters/user-to-mxid.js

@@ -64,7 +64,7 @@ function userToSimName(user) {
 	}
 
 	// 1. Is sim user already registered?
-	const existing = select("sim", "sim_name", {user_id: user.id}).pluck().get()
+	const existing = select("sim", "user_id", {user_id: user.id}).pluck().get()
 	assert.equal(existing, null, "Shouldn't try to create a new name for an existing sim")
 
 	// 2. Register based on username (could be new or old format)