View client version menu option doesn't show information

it looks like this works with when querying other clients. It appears to be an issue with spark replying to queries. The time query looks like its being sent correct, but the version does not. no idea how to fix this or what to do next, but maybe this will help someone.

<error type="modify"><not-acceptable xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/></error></iq>

likely an issue with org.jivesoftware.sparkimpl.plugin.jabber.JabberVersion.java and/or org.jivesoftware.sparkimpl.plugin.jabber.VersionViewer.java

Merged https://github.com/igniterealtime/Spark/pull/300
Still can't get client version of another Spark 2.8.x client. Shows loading indicator though.