[Fix] Fix issues of ChangeVotingOption method of Election Contract.

[EanCuznaivy]

[vizipi[bot]]

Pull request analysis by VIZIPI

Below you will find who is the most qualified team member to review your code. This analysis includes his/her work on the code included in this Pull request, in addition to their experience in code affected by these changes ( partly found within the list of potential missing files below )   Feedback always welcome

Reviewers with knowledge related to these changes

Match %	Person	Commit Count	Common Files
30.43 %	weili	154	21
27.54 %	jason-hoopox	33	19
21.74 %	轩辕焮痕	1	15
20.29 %	ZhangXin	20	14
5.80 %	YueZh127	6	4
1.45 %	haoei	1	1

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Potential missing files from this Pull request

No commonly committed files found with a 40% threashold

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Committed file ranks

(click to expand)

95.82%[...test/AElf.Contracts.Election.Tests/ElectionContractTestHe]

99.48%[test/AElf.Contracts.Election.Tests/BVT/ElectionTests.cs]

82.53%[...contract/AElf.Contracts.Profit/Managers/ProfitDetailManag]

66.80%[...contract/AElf.Contracts.Profit/Managers/ProfitSchemeManag]

50.25%[...test/AElf.Contracts.Election.Tests/Full/CitizenWelfareTes]

20.41%[...test/AElf.Contracts.Election.Tests/Full/ChangeVotingOptio]

99.57%[...contract/AElf.Contracts.Election/ElectionContract_Elector]

99.54%[protobuf/election_contract.proto]

98.03%[contract/AElf.Contracts.Election/ElectionContractState.cs]

50.25%[...contract/AElf.Contracts.Profit/Services/ProfitService_Hel]