Fix roll back behind final edge case

[SebastianMarian]

• Fixed roll back behind final edge case, when final block hash from fork detector is not the same with the header hash committed even if the nonce is the same

[codecov-commenter]

Codecov Report

Merging #4081 (d515f9f) into development (4c6761d) will increase coverage by 0.01%.
The diff coverage is 76.17%.

❗ Current head d515f9f differs from pull request most recent head a697447. Consider uploading reports for the commit a697447 to get more accurate results

@@               Coverage Diff               @@
##           development    #4081      +/-   ##
===============================================
+ Coverage        75.25%   75.27%   +0.01%     
===============================================
  Files              614      617       +3     
  Lines            82115    82320     +205     
===============================================
+ Hits             61794    61964     +170     
- Misses           15643    15667      +24     
- Partials          4678     4689      +11     

Impacted Files	Coverage Δ
process/sync/errors.go	0.00% <ø> (ø)
...s/sync/storageBootstrap/metaStorageBootstrapper.go	0.00% <0.00%> (ø)
trie/trieStorageManager.go	61.58% <ø> (ø)
update/common.go	56.34% <0.00%> (ø)
vm/systemSmartContracts/eei.go	75.91% <0.00%> (-0.43%)	⬇️
vm/process/systemVM.go	60.00% <37.50%> (-3.02%)	⬇️
update/process/metaBlock.go	79.41% <50.00%> (ø)
outport/notifier/httpClient.go	60.00% <60.00%> (ø)
outport/notifier/eventNotifier.go	60.97% <60.97%> (ø)
.../sync/storageBootstrap/shardStorageBootstrapper.go	65.82% <96.77%> (+26.73%)	⬆️
... and 16 more

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[gabi-vuls]

System test passed.