Patch-apply fails with java.io.IOException: Error uploading patched jars: Unauth

Issue

Trying to patch-apply 6.1.0 Rollup 1 to fabric ensemble.

Created version: 2.0 as copy of: 1.0
patch-apply --version 2.0 file:///home/fuse-fabric-scripts/fuse-patches/jboss-fuse-6.1.0.redhat-379-r1.zip...
Error executing command: Unable to apply patch

karaf.log has

java.lang.RuntimeException: Unable to apply patch
...
Caused by: java.io.IOException: Error uploading patched jars: Unauthorized
...

Using AD JAAS authentication.
Logging in to container using my account.
Service account that container is running under can access the zip file. unzip -l works fine.