add note on potential issue to fix

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@757643 13f79535-47bb-0310-9956-ffa450edef68

archiva-modules/archiva-web/archiva-webdav/src/main/java/org/apache/maven/archiva/webdav/ArchivaDavResource.java

@@ -313,6 +313,7 @@ public class ArchivaDavResource
                 IOUtils.closeQuietly( stream );
             }
             
+            // TODO: a bad deployment shouldn't delete an existing file - do we need to write to a temporary location first?
             if ( inputContext.getContentLength() != localFile.length() )
             {
                 FileUtils.deleteQuietly( localFile );