Do not access closed via updater

This is a volatile field and an Updater.get() is equivalent to a read.
Use a direct read, thus making the field visibly used. This removes the
need for a warning suppression.

Change-Id: I0799ae80c2431b9d48bb5f62f681ed4fe5289f41
Signed-off-by: Robert Varga <rovarga@cisco.com>
Merge "Do not access closed via updater"