Fix MerchantDomainService coverage gaps: production bugs + full test coverage - #1507

Fix MerchantDomainService coverage gaps: production bugs + full test coverage#1507

StuartFerguson merged 6 commits into

masterTransactionProcessing/TransactionProcessor:masterfrom

copilot/update-test-coverage-merchant-domain-serviceTransactionProcessing/TransactionProcessor:copilot/update-test-coverage-merchant-domain-serviceCopy head branch name to clipboard