Prevent double entering to the same round

[themantre]

No description provided.

[codecov]

Codecov Report

Merging #75 (71e7a21) into main (7f5db5a) will decrease coverage by 0.01%.
The diff coverage is 86.66%.

@@            Coverage Diff             @@
##             main      #75      +/-   ##
==========================================
- Coverage   82.61%   82.60%   -0.02%     
==========================================
  Files          89       89              
  Lines        4349     4346       -3     
==========================================
- Hits         3593     3590       -3     
  Misses        510      510              
  Partials      246      246              

Impacted Files	Coverage Δ
consensus/commit.go	83.78% <0.00%> (-8.11%)	⬇️
consensus/precommit.go	87.50% <80.00%> (ø)
consensus/consensus.go	92.85% <100.00%> (-0.17%)	⬇️
consensus/height.go	80.76% <100.00%> (ø)
consensus/prepare.go	100.00% <100.00%> (ø)
consensus/propose.go	88.67% <100.00%> (+5.66%)	⬆️
consensus/round.go	100.00% <100.00%> (ø)

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