Do not try to run the training job for provisioned accounts

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

lib/BackgroundJob/TrainImportanceClassifierJob.php

@@ -74,6 +74,12 @@ class TrainImportanceClassifierJob extends TimedJob {
 			return;
 		}
 
+		$dbAccount = $account->getMailAccount();
+		if ($dbAccount->getProvisioned() && $dbAccount->getInboundPassword() === null) {
+			$this->logger->info("Ignoring cron training for provisioned account that has no password set yet");
+			return;
+		}
+
 		try {
 			$this->classifier->train(
 				$account,