Issue number: resolves#25839
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## What is the current behavior?
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Confirming the working day when a datetime using a wheel picker without
an initial value will result in a value of `undefined` instead of the
displayed working day the user sees.
## What is the new behavior?
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this PR. -->
- `preferWheel` uses the working value on confirmation
## Does this introduce a breaking change?
- [ ] Yes
- [x] No
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and migration path for existing applications below. -->
## Other information
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screenshots of how the component looks before and after the change. -->
Dev-build: `7.5.7-dev.11701896424.13d40ac9`
Co-authored-by: liamdebeasi <liamdebeasi@users.noreply.github.com>