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When the current process has renamed (to bin) a readonly dll, we get STATUS_TRANSACTION_NOT_ACTIVE for unknown reason when subsequently creating the forkable hardlink. A workaround is to open the original file with FILE_WRITE_ATTRIBUTES access, but that fails with permission denied for users not owning the original file. * forkable.cc (dll::create_forkable): Retry hardlink creation using the original file's handle opened with FILE_WRITE_ATTRIBUTES access when the first attempt fails with STATUS_TRANSACTION_NOT_ACTIVE.
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