Fix creating webhooks for matrix users

src/d2m/actions/speedbump.js

@@ -129,6 +129,8 @@ function onMessageDelete(messageID) {
  * @param {string} roomID
  */
 async function getWebhookSenderId(message, guildID, roomID) {
+	const isMatrixWebhook = select("webhook", "webhook_id", {webhook_id: message.webhook_id}).pluck().get()
+	if (isMatrixWebhook) return null
 	const speedbumpUserID = select("channel_speedbump", "speedbump_user_id", {channel_id: message.channel_id, speedbump_webhook_id: message.webhook_id}).pluck().get()
 	const useWebhookProfile = select("guild_space", "webhook_profile", {guild_id: guildID}).pluck().get() ?? 0
 	if (speedbumpUserID === "466378653216014359") { // PluralKit public instance

src/d2m/converters/message-to-event.test.js

@@ -1612,7 +1612,7 @@ test("message2event: expired/invalid invites are sent as-is", async t => {
 		snow: {
 			invite: {
 				async getInvite() {
-					throw new Error(`{"message": "Unknown Invite", "code": 10006}`)
+					throw new Error(`Unknown Invite`)
 				}
 			}
 		}