polling consistently fail since upgrade to 1.490 with stacktrace:

ERROR: Failed to record SCM polling for hudson.model.FreeStyleProject@1fee2db[Latest]
java.lang.StringIndexOutOfBoundsException: String index out of range: -1
at java.lang.String.substring(Unknown Source)
at hudson.Launcher.inherit(Launcher.java:1068)
at hudson.Launcher.access$100(Launcher.java:80)
at hudson.Launcher$LocalLauncher.launch(Launcher.java:756)
at hudson.Launcher$ProcStarter.start(Launcher.java:346)
at hudson.Launcher$RemoteLaunchCallable.call(Launcher.java:988)
at hudson.Launcher$RemoteLaunchCallable.call(Launcher.java:955)
at hudson.remoting.UserRequest.perform(UserRequest.java:118)
at hudson.remoting.UserRequest.perform(UserRequest.java:48)
at hudson.remoting.Request$2.run(Request.java:326)
at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at hudson.remoting.Engine$1$1.run(Engine.java:60)
at java.lang.Thread.run(Unknown Source)