fix: Only cleanup earlier steps that haven't been persisted yet to th…

…e state file

Signed-off-by: Julius Härtl <jus@bitgrid.net>

lib/Service/DocumentService.php

@@ -429,7 +429,7 @@ public function resetDocument(int $documentId, bool $force = false): void {
 
 			$this->unlock($documentId);
 
-			$this->stepMapper->deleteAll($documentId);
+			$this->stepMapper->deleteBeforeVersion($documentId, $document->getLastSavedVersion());
 			$this->sessionMapper->deleteByDocumentId($documentId);
 			$this->documentMapper->delete($document);
 			$this->getStateFile($documentId)->delete();