TYPO3 Core

It starts while installation. Before the table are created the sql-error is diven:

ALTER TABLE tx_dam_mm_ref CHANGE sorting sorting_foreign int(11) unsigned DEFAULT 0 NOT NULL

after creating the tables dam blocks TYPO3 BE with following error:

Catchable fatal error: Argument 1 passed to t3lib_div::array_merge_recursive_overrule() must be an array, null given, called in C:\web\x-htdocs\t3\trunk\typo3conf\ext\dam\lib\class.tx_dam.php on line 1396 and defined in C:\web\x-htdocs\t3\trunk\t3lib\class.t3lib_div.php on line 1756

this is dam related but core related too.
The utf8-changes analyses tables from sql-file and try to alter table before it is created.
(issue imported from #M7740)