Fixed an issue with mapped property symbol not displaying added `| undefined` when its origin symbol was optional - #64100

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Mateusz Burzyński (Andarist) wants to merge 6 commits into

microsoft:mainfrom

Andarist:fix/mapped-prop-undefined-display-go

Commits on Aug 30, 2026

Fixed an issue with mapped property symbol not displaying added `| undefined` when its origin symbol was optional
Mateusz Burzyński (Andarist)
committed
a414fc8
extra tests
Mateusz Burzyński (Andarist)
committed
21a355a
Preserve reverse mapped undefined handling
Mateusz Burzyński (Andarist)
committed
1aebdee
Handle inferred mapped properties
Mateusz Burzyński (Andarist)
committed
692fe99
Follow undefined through mapped templates
Mateusz Burzyński (Andarist)
committed
cf3c432

Commits on Aug 31, 2026

Match mapped property undefined display behavior
Mateusz Burzyński (Andarist)
committed
a6ea896