Yukang-Lian opened a new pull request, #65869:
URL: https://github.com/apache/doris/pull/65869

   ## What changed
   
   - Restore `showJobState` before the `origStmt == null` early return in 
`RollupJobV2.gsonPostProcess()`.
   - Add regression coverage for deserializing a persisted rollup job without 
`origStmt`.
   
   ## Why
   
   `showJobState` is not persisted. For rollup jobs created by `ALTER TABLE ... 
ADD ROLLUP`, `origStmt` can be null, so FE metadata reload returned before 
reconstructing `showJobState`. A subsequent `SHOW ALTER TABLE ROLLUP` or `SHOW 
ALTER TABLE MATERIALIZED VIEW` could then dereference a null state.
   
   Fixes DORIS-27330.
   
   ## Validation
   
   - `./run-fe-ut.sh --run 
'org.apache.doris.alter.RollupJobV2Test#testDeserializeOldRollupJobWithoutOrigStmt'`
   - `./run-fe-ut.sh --run 'org.apache.doris.alter.RollupJobV2Test'`
   - `git diff --check`
   


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