Thanks for the report and apologies for losing track of this one. There's a fix in the latest v2022.3 beta that we'd appreciate feedback on. CC @ahblake who also ran into this recently.
There's some risk to the fix around repeats and dynamic defaults, especially when using nested repeats. If you have forms that use dynamic defaults that are NOT set from within the same repeat instance, please send us the forms so we can add them to our test suite.