checkCommit should return SectorCommitFailed

[yhio]

No description provided.

[codecov]

Codecov Report

Merging #7555 (3123400) into master (e1deed3) will decrease coverage by 0.06%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #7555      +/-   ##
==========================================
- Coverage   39.89%   39.83%   -0.07%     
==========================================
  Files         633      633              
  Lines       67098    67098              
==========================================
- Hits        26769    26727      -42     
- Misses      35732    35771      +39     
- Partials     4597     4600       +3     

Impacted Files	Coverage Δ
extern/storage-sealing/states_sealing.go	38.04% <0.00%> (ø)
storage/wdpost_sched.go	77.22% <0.00%> (-7.93%)	⬇️
extern/sector-storage/manager_calltracker.go	57.70% <0.00%> (-4.85%)	⬇️
miner/miner.go	54.96% <0.00%> (-3.65%)	⬇️
extern/storage-sealing/fsm.go	55.77% <0.00%> (-2.79%)	⬇️
chain/stmgr/searchwait.go	66.02% <0.00%> (-1.29%)	⬇️
chain/store/store.go	63.83% <0.00%> (-1.01%)	⬇️
storage/wdpost_run.go	69.62% <0.00%> (-0.64%)	⬇️
storage/wdpost_changehandler.go	97.64% <0.00%> (-0.48%)	⬇️
chain/consensus/filcns/filecoin.go	51.66% <0.00%> (-0.45%)	⬇️
... and 8 more

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[magik6k]

(we should eventually just drop the ComputeProofFailed state)