[http-client-csharp] Preserve last-contract model base types - #11818

[http-client-csharp] Preserve last-contract model base types#11818

Wei Hu (live1206) wants to merge 18 commits into

microsoft:mainmicrosoft/typespec:mainfrom

live1206:test/11816-last-contract-base-typelive1206/typespec:test/11816-last-contract-base-typeCopy head branch name to clipboard