starttag of first updater is not removed by updaterengine.

Current situation:
Start tag is not removed from hippo:versions.

Desired situation:
Start tag is replaced by last end tag.

Background
org.hippoecm.repository.updater.UpdaterEngine:620
newVersions are updated correctly, not not properly saved.

I added two updaters and a starttag in the hippoecm-extension.xml:
https://svn.onehippo.org/repos/closed/sandbox/michiel/updaterbug/

The situation occurs also in the politienl/politieintranet project