Engineering - skip property mangling in PR builds (microsoft#184584)

Author: lszomoru

build/azure-pipelines/product-compile.yml

@@ -93,10 +93,16 @@ steps:
 
   - template: common/install-builtin-extensions.yml
 
-  - script: yarn npm-run-all -lp core-ci extensions-ci hygiene eslint valid-layers-check vscode-dts-compile-check tsec-compile-check
-    env:
-      GITHUB_TOKEN: "$(github-distro-mixin-password)"
-    displayName: Compile & Hygiene
+  - ${{ if eq(parameters.VSCODE_QUALITY, 'oss') }}:
+    - script: yarn npm-run-all -lp core-ci-pr extensions-ci-pr hygiene eslint valid-layers-check vscode-dts-compile-check tsec-compile-check
+      env:
+        GITHUB_TOKEN: "$(github-distro-mixin-password)"
+      displayName: Compile & Hygiene
+  - ${{ else }}:
+    - script: yarn npm-run-all -lp core-ci extensions-ci hygiene eslint valid-layers-check vscode-dts-compile-check tsec-compile-check
+      env:
+        GITHUB_TOKEN: "$(github-distro-mixin-password)"
+      displayName: Compile & Hygiene
 
   - ${{ if ne(parameters.VSCODE_QUALITY, 'oss') }}:
     - script: |