Structure fields are not expanded by Tab key

This is my first attempt at writing a plugin and I’m doing it in Xojo.
The plugin defines some structures and enumerations.
I’ve noticed that structure fields does not have in the editor auto-completion or expansion using the Tab key: on enumeration this works fine.
It is the expected behaviour?

Regards.

Please File a bug report.

Done, case #27421.

In general IDE editor expand in odd ways/places the contents of types defined in plugins.
Please, see the instructions in the demo project source attached to the bug report.

Thank you.