allow deferred revert current block to work

[AdoAdoAdo]

Reasoning behind the pull request

Proposed changes

Testing procedure

Pre-requisites

Based on the Contributing Guidelines the PR author and the reviewers must check the following requirements are met:

• was the PR targeted to the correct branch?
• if this is a larger feature that probably needs more than one PR, is there a feat branch created?
• if this is a feat branch merging, do all satellite projects have a proper tag inside go.mod?

[Copilot]

Pull request overview

This PR fixes a critical issue where deferred revert operations for the current block would fail in headerV3 processing. The fix ensures that execution results are collected and stored in the header before committing state, allowing the deferred RevertCurrentBlock mechanism to properly access execution results when errors occur.

Key Changes

• Reordered operations to call collectExecutionResults before commitState in meta block proposal processing
• Fixed error variable handling to ensure the deferred revert function can properly detect errors
• Added ClearFields() call for transaction syncer to match the pattern used for miniblock syncer

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
process/sync/baseSync.go	Added ClearFields() call before syncing transactions, ensuring state is cleared consistently with miniblock syncing
process/block/shardblockProposal.go	Changed error variable from errCutoff to err to enable deferred revert detection, and refactored variable declarations to explicitly avoid shadowing
process/block/metablockProposal.go	Moved commitState after collectExecutionResults in both regular and epoch start proposal processing, ensuring execution results are available for deferred revert; refactored variable declarations for consistency

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[codecov]

Codecov Report

❌ Patch coverage is 93.75000% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 77.69%. Comparing base (45236d8) to head (592af51).
⚠️ Report is 11 commits behind head on feat/supernova-async-exec.

Files with missing lines	Patch %	Lines
process/sync/baseSync.go	60.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@                      Coverage Diff                      @@
##           feat/supernova-async-exec    #7585      +/-   ##
=============================================================
- Coverage                      77.70%   77.69%   -0.01%     
=============================================================
  Files                            875      875              
  Lines                         120927   120898      -29     
=============================================================
- Hits                           93963    93931      -32     
- Misses                         20763    20774      +11     
+ Partials                        6201     6193       -8     

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