Bug: 2.6 upgrade creates a com_jaextmanager menu entry

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Just upgraded to VM 2.6 and the upgrade process has created a com_jaextmanager menu entry in the administrator menu under Components.
I have never had that component installed, it seems to be for a Joomla Art component.
Not a biggy but thought I ought to report it.
The rest of the upgrade went perfectly so far. I'll test for a couple of weeks then roll out to production if nothing crops up. Nice one devs.