DBRadioGroup - Two clicks to select a RadioButton?

[kapibara]

Selecting a RadioButton from a DBRadioGroup seems to need two clicks? Am I forgetting something?

If you run this demo, doubleclick an apple in the main form and up comes the properties in a modal form. Here you can modify properties of the chosen apple.

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(The app is a master/detail test using one table but two separate queries against the same table. The idea is that qryApples will just query for names so the associated listbox will load faster. But qryAppleProps will load all fields, so they can be edited from the properties form. Right now there are just a few fields in the apples table, but later will be more)