Exit early if no message ids are to be fixed

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

1 files changed, 4 insertions, 1 deletions

diff --git a/lib/Migration/AddMissingMessageIds.php b/lib/Migration/AddMissingMessageIds.php
index 259ed78ad..9ce5d3b2c 100644
--- a/lib/Migration/AddMissingMessageIds.php
+++ b/lib/Migration/AddMissingMessageIds.php
@@ -51,7 +51,7 @@ class AddMissingMessageIds implements IRepairStep {
 		return 'Add a generated message-id to all Mail messages that have none';
 	}
 
-	public function run(IOutput $output) {
+	public function run(IOutput $output): void {
 		$output->info('Looking up messages without a message-id');
 
 		/**
@@ -69,6 +69,9 @@ class AddMissingMessageIds implements IRepairStep {
 		}
 
 		$toFix = $this->mapper->findWithEmptyMessageId();
+		if (empty($toFix)) {
+			return;
+		}
 		$output->info(sprintf('%d messages need an update', count($toFix)));
 		$output->startProgress(count($toFix));
 		foreach ($toFix as $message) {