TYPO3 Core

After pulling the current master, running Compare Database and updating the DB, I get the following error in the BE when trying to access the EM.

#1: PHP Catchable Fatal Error: Argument 1 passed to TYPO3\CMS\Extensionmanager\Utility\Repository\Helper::setRepository() must be an instance of TYPO3\CMS\Extensionmanager\Domain\Model\Repository, null given, called in typo3/sysext/extensionmanager/Classes/Utility/Repository/Helper.php on line 88 and defined in typo3/sysext/extensionmanager/Classes/Utility/Repository/Helper.php line 101

The reason is that the repository table not existing or empty.
Unfortunately I'm not able to add the table via Static Data of the EM extension as I need a working EM for that.
(Chicken+Egg)

Possible solution:
Provide an upgrade wizard which ensures that this table exists and contains at least one repository.