Lunderberg opened a new pull request, #13326:
URL: https://github.com/apache/tvm/pull/13326

   Preivously, the block SREF reuse only included a single step of changes, and 
would have an incorrect mapping if multiple sequential changes to the TIR block 
occurred.  This could happen if a `BufferStore` was updated, followed by 
replacement of `Block` iter vars/values.  This commit tracks the Block 
replacements across each usage, to ensure the SREF instances remain valid.


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