jbossts-properties.xml not loaded if arjuna-properties-file not set in manifest

If the property isn't set, ConfigurationInfo falls back to looking for "arjuna-properties.xml" because of https://github.com/jbosstm/narayana/blob/master/common/classes/com/arjuna/common/util/ConfigurationInfo.java#L152. Is that default intentional, or should it have been set to "jbossts-properties.xml" as part of JBTM-482?

We're running in to this with Immutant, where the user can run their application as a set of jars or as an uberjar. When ran as a set of jars, the manifest from narayana-jta.jar has arjuna-properties-file set, and the jar provides a jbossts-properties.xml at the top level that gets loaded. But when the user creates an uberjar (a process we don't control), the uberjar includes the jbossts-properties.xml file from the jta jar, but does not include the arjuna-properties-file property in the manifest, which causes narayana to fail because the node id isn't set. We'd prefer the same behavior in either run mode, so currently provide an arjuna-properties.xml that is identical to the default from the jta jar to work around the issue.