Option "T" in dialog controls

How can I make a markup control auto-size itself from the start, without having to resize the dialog window first?
I understand that this is precisely what the "T" option is for when resizing a control.
Using W and T on the control, but this happens:


dlg_test.opusscriptinstall (1.1 KB)

Only after resizing the dialog, the control is also resized.
Adding Control.AutoSize() has no effect either.
Or what would be the correct way for the control to autosize to its content?

The control is autosizing correctly, the problem is the other control doesn't autosize to compensate. Will be fixed in the next beta.

Thanks. Now it resizes properly.
However, it seems that a new issue appears related to this fix?