update cohort deprecation text

CHANGELOG.md

@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Build on and target .Net 9 rather than 8
 - Simplify DB Patching Interface
 - Fix issue with Simple File Extractor pipeline component checking
+- Improve cohort deprecation override test
 
 ## [8.4.2] - 2024-12-18
 

Rdmp.Core/CommandExecution/AtomicCommands/CohortCreationCommands/CohortCreationCommandExecution.cs

@@ -206,8 +206,11 @@ protected void DeprecateExistingCohorts(IBasicActivateItems activator, Extractab
 
         }
         var cohortIDs = cohortsThatAreDeprecatedOrHaveBeenDeprecated.Select(c => c.ID).ToList();
-        var extractionConfigurations = activator.RepositoryLocator.DataExportRepository.GetAllObjects<ExtractionConfiguration>().Where(ei => ei.Cohort_ID is not null && cohortIDs.Contains((int)ei.Cohort_ID));
-        if (extractionConfigurations.Any() && activator.YesNo("Would you like to replace all uses of a deprecated cohort in this project with this cohort?", "Replace Deprecated Cohorts"))
+        var extractionConfigurations = activator.RepositoryLocator.DataExportRepository.GetAllObjects<ExtractionConfiguration>().Where(ei => !ei.IsReleased && ei.Cohort_ID is not null && cohortIDs.Contains((int)ei.Cohort_ID));
+        if (extractionConfigurations.Any() && activator.YesNo("""
+Would you like to replace all uses of a deprecated cohort in this project with this cohort?
+This will update all non-released Extraction configurations that use the now deprecated cohort to use the chort you have just created.
+""", "Replace Deprecated Cohorts"))
         {
             foreach (var config in extractionConfigurations)
             {