Yii2: Migration: MS SQL alterColumn with ->null() syntax error

[tsdogs]

What steps will reproduce the problem?

In migration if I do:
$this->alterColumn('table','column',$this->integer()->null());

What is the expected result?

IMHO the column should be created without error with:
ALTER TABLE [table] ALTER COLUMN [column] integer NULL

What do you get instead?

SYNTAX ERROR:
ALTER TABLE [table] ALTER COLUMN [column] integer NULL DEFAULT NULL

Additional info

The DEFAULT NULL should not be there!!!
Might be related to #12077 and #11158

[tsdogs]

I temporarily solve this by doing:
$this->alterColumn('table','column',$this->integer().' NULL');

[cebe]

which DBMS is that? MySQL?

[samdark]

MSSQL as said in the title.

[dillix]

I also have this issue on MySQL:
access_token varchar(100) NULL DEFAULT NULL