fix: ancestor-binding initial value type incompatibility #1220
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GitHub Issue (If applicable): closes #1218, closes #1219
PR Type
What kind of change does this PR introduce?
What is the current behavior?
AncestorBinding when used on non-reference type dp would cause a COMException. This is due to it returning
null
as initial default value, until the binding came online.What is the new behavior?
The current value will now be returned, prevent this COMException.
PR Checklist
Please check if your PR fulfills the following requirements: