if there was an error, it's better to send an error message.

If you just return, it will cause an empty page to be rendered, leaving the user clue-less.


git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@1068 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/java/hudson/model/Run.java

@@ -744,6 +744,7 @@ public abstract class Run <JobT extends Job<JobT,RunT>,RunT extends Run<JobT,Run
         // marked to be preserved, or if the build should not be deleted
         // due to dependencies!
         if (isKeepLog()) {
+            sendError(toString()+" is explicitly marked to be preserved",req,rsp);
             return;
         }