SP-282/BIS-179: Failure of Sample Registration with automatically generated codes

...penbis/dss/generic/server/EncapsulatedOpenBISService.java

...enbis/dss/generic/shared/IEncapsulatedOpenBISService.java

...ch/systemsx/cisd/openbis/generic/server/CommonServer.java

...a/ch/systemsx/cisd/openbis/generic/server/ETLService.java

...ystemsx/cisd/openbis/generic/server/ETLServiceLogger.java

...enbis/generic/server/business/bo/EntityCodeGenerator.java

...systemsx/cisd/openbis/generic/shared/IETLLIMSService.java

...msx/cisd/openbis/plugin/generic/server/GenericServer.java

.../systemsx/cisd/openbis/systemtest/CodeGenerationTest.java

...ver/proteomics/DataSetInfoExtractorForProteinResults.java

...proteomics/DataSetInfoExtractorForProteinResultsTest.java