Regenerate local artifacts and invalidate stale receipts

build.go

@@ -54,7 +54,7 @@ type BuildResult struct {
 }
 
 // Build compiles the selected targets with Version injected through buildinfo.
-// It uses the prepared local Go environment, preserves existing output files,
+// It uses the prepared local Go environment, regenerates selected output files while preserving unrelated files,
 // and verifies the version command on the native host before succeeding. An
 // empty target set records source identity without running the Go toolchain.
 // Errors return partial build facts in the result.