[Lazarus] Change type of object in form

[Jürgen Hestermann]

Am 2013-03-13 18:58, schrieb Juha Manninen:
> For me it works correctly. I just tested.

Shure? All anchor references in the changed object were retained
but references in other (not changed) objects that used the changed
object were gone.

Maybe I find some time to investigate more in it but as so often,
I actually wanted to do code and bugfix *my* program. ;-)