[LMS-1504] fix phosphonetx bug: empty protein viewer tab

.../java/ch/ethz/bsse/cisd/dsu/tracking/main/TrackingBO.java

.../client/web/client/application/MatchingEntitiesPanel.java

...nt/web/client/application/plugin/ClientPluginAdapter.java

...c/client/web/client/application/plugin/IClientPlugin.java

...t/web/client/application/plugin/IClientPluginFactory.java

...t/web/client/application/ui/AbstractRegistrationForm.java

...eric/client/web/client/application/ui/AbstractViewer.java

...lient/application/ui/columns/framework/LinkExtractor.java

...tion/ui/experiment/ProjectSelectionTreeGridContainer.java

...t/web/client/application/ui/grid/AbstractBrowserGrid.java

...t/application/ui/listener/OpenEntityDetailsTabAction.java

...plication/ui/material/MaterialBatchRegistrationPanel.java

...application/ui/sample/SampleBatchRegisterUpdatePanel.java

...client/application/ui/widget/EntityRegistrationPanel.java

...cisd/openbis/generic/server/business/bo/VocabularyBO.java

.../cisd/openbis/generic/shared/basic/IAttachmentHolder.java

...stemsx/cisd/openbis/generic/shared/basic/ICodeHolder.java

...penbis/generic/shared/basic/IEntityInformationHolder.java

.../shared/basic/IEntityInformationHolderWithIdentifier.java

...x/cisd/openbis/generic/shared/basic/IIdAndCodeHolder.java