s:select tag does not support properties containing data other than Stringto preselect value

Related to WW-1601 (was marked as cannot reproduce and I have no rights to reopen it)

The test mentioned in WW-1601 checks Bytes but only in the context of the list to be displayed.
But on the action form side it uses a collection of Strings - actual values.

It is enough to change at least one of the values on the form collection to Byte and see that it fails.

See my last comment in WW-1601
The test fails when I try to use the same dataType (non-String) in both places.
And this is a big limitation.