Fix nightly builds to avoid creating unnecessary prereleases after stable releases

Co-authored-by: Romanitho <96626929+Romanitho@users.noreply.github.com>

Author: Copilot

.github/workflows/GitFlow_Nightly-builds.yml

@@ -47,9 +47,25 @@ jobs:
           # Initialize BUILD_NEEDED with default value
           $BUILD_NEEDED = $false
           
-          # Get the latest release tag to determine release type
-          $LATEST_TAG = git tag -l --sort=-version:refname | Select-Object -First 1
-          Write-Host "`n[INFO] Latest release tag: $LATEST_TAG" -ForegroundColor Green
+          # Get the latest stable release tag (without prerelease suffix)
+          # Note: We prioritize stable releases over prereleases for comparison
+          # Git's version sort treats v2.10.0-0 as greater than v2.10.0, which is incorrect
+          # for our purposes. We want to compare against the latest stable release.
+          $LATEST_STABLE_TAG = git tag -l --sort=-version:refname | Where-Object { $_ -notlike "*-*" } | Select-Object -First 1
+          $LATEST_PRERELEASE_TAG = git tag -l --sort=-version:refname | Where-Object { $_ -like "*-*" } | Select-Object -First 1
+          
+          # Use the latest stable tag as our reference point
+          # If no stable tag exists, fall back to the latest prerelease
+          if ($LATEST_STABLE_TAG) {
+              $LATEST_TAG = $LATEST_STABLE_TAG
+              Write-Host "`n[INFO] Latest stable release tag: $LATEST_TAG" -ForegroundColor Green
+              if ($LATEST_PRERELEASE_TAG) {
+                  Write-Host "[INFO] Latest prerelease tag (ignored for comparison): $LATEST_PRERELEASE_TAG" -ForegroundColor DarkGray
+              }
+          } else {
+              $LATEST_TAG = $LATEST_PRERELEASE_TAG
+              Write-Host "`n[INFO] No stable release found, using latest prerelease: $LATEST_TAG" -ForegroundColor Yellow
+          }
           
           # Determine release type based on previous tag
           if ($LATEST_TAG -like "*-*") {