Lets try

Author: stevencl840

.github/workflows/ci.yml

@@ -35,14 +35,14 @@ jobs:
           # if it is a pull request build set the build identity to branchname.runnumber
           if ("${{ github.event_name }}" -eq "pull_request" -and "${{ github.head_ref }}" -ne "") {
             $branchName = "${{ github.head_ref }}" -replace '[/\\]', '-' -replace '[^a-zA-Z0-9\-]', ''
-            $buildIdentity = "$branchName.${{ github.run_number }}"
-            
-            $env:BUILD_IDENTITY = $buildIdentity
+            $env:MINVERDEFAULTPRERELEASEIDENTIFIERS = "octopus-$branchName.${{ github.run_number }}"
+            Write-Host "PR build - pre-release identifiers: octopus-$branchName.${{ github.run_number }}"
           }
           
           # if it is a scheduled build set the build identity to nightly
           if ("${{ github.event_name }}" -eq "schedule" -or "${{ inputs.nightly }}" -eq "true") {
-            $env:BUILD_IDENTITY = "nightly.${{ github.run_number }}"
+            $env:MINVERDEFAULTPRERELEASEIDENTIFIERS = "nightly.${{ github.run_number }}"
+            Write-Host "Nightly build - pre-release identifiers: nightly.${{ github.run_number }}"
           }
 
           dotnet build LibGit2Sharp.sln --configuration Release

LibGit2Sharp/LibGit2Sharp.csproj

@@ -21,17 +21,13 @@
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <PackageId>Octopus.LibGit2Sharp</PackageId>
     <PackageOutputPath>$(ArtifactsPath)\package</PackageOutputPath>
-    <MinVerDefaultPreReleaseIdentifiers>octopus.0</MinVerDefaultPreReleaseIdentifiers>  
+    <MinVerDefaultPreReleaseIdentifiers>octopus.0</MinVerDefaultPreReleaseIdentifiers>
     <MinVerBuildMetadata Condition="'$(libgit2_hash)' != ''">libgit2-$(libgit2_hash.Substring(0,7))</MinVerBuildMetadata>
   </PropertyGroup>
-  
+
   <PropertyGroup Condition="'$(TargetFramework)' == 'net8.0'">
     <IsTrimmable>true</IsTrimmable>
   </PropertyGroup>
-  
-  <PropertyGroup Condition="'$(BUILD_IDENTITY)' != ''">
-    <MinVerDefaultPreReleaseIdentifiers>octopus-$(BUILD_IDENTITY)</MinVerDefaultPreReleaseIdentifiers>
-  </PropertyGroup> 
 
   <ItemGroup>
     <PackageReference Include="LibGit2Sharp.NativeBinaries" Version="[2.0.323]" PrivateAssets="none" />