[Backport releases/v4.19.0] feat: importModules without loading environment extensions#7787
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kim-em merged 1 commit intoreleases/v4.19.0from Apr 2, 2025
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This PR ensures that environments can be loaded, repeatedly, without executing arbitrary code (cherry picked from commit 5df4e48)
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Oct 23, 2025
The `overwrite_index.lean` script failed to count attributes after a Lean version bump. This was due to changes in how module imports handle environment extensions, as introduced in leanprover/lean4#7787 . `Lean.withImportModules` no longer loads environment extensions. This commit refactors the `runWithImports` function to use the lower-level `importModulesCore` and `finalizeImport` functions, explicitly setting `loadExts := true` to ensure attributes are loaded and counted correctly.
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Backport 5df4e48 from #6325.