Fix nightly build workflow by removing --clobber and adding deduplication

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

.github/workflows/nightly.yml

@@ -706,15 +706,49 @@ jobs:
           GH_TOKEN: ${{ github.token }}
         run: |
           ls
-          find tmp -type f \( -name "*.zip" -o -name "*.whl" -o -name "*.tar.gz" -o -name "*.nupkg" -o -name "*.snupkg" \) > release_files.txt
+          find tmp -type f \( -name "*.zip" -o -name "*.whl" -o -name "*.tar.gz" -o -name "*.nupkg" -o -name "*.snupkg" \) -print0 > release_files.txt
+          
+          # Deduplicate files - keep only first occurrence of each basename
+          # Use NUL-delimited input/output to handle spaces in filenames safely
+          python3 << 'DEDUP_SCRIPT'
+          import sys
+          import os
+          
+          seen_basenames = set()
+          unique_files = []
+          
+          # Read NUL-delimited input
+          with open("release_files.txt", "rb") as f:
+              content = f.read()
+              files = content.decode("utf-8").split("\0") if content else []
+              
+              for filepath in files:
+                  filepath = filepath.strip()
+                  if not filepath:
+                      continue
+                      
+                  basename = os.path.basename(filepath)
+                  
+                  # Keep only first occurrence of each basename
+                  if basename not in seen_basenames:
+                      seen_basenames.add(basename)
+                      unique_files.append(filepath)
+          
+          # Write NUL-delimited output
+          with open("release_files_dedup.txt", "wb") as f:
+              f.write("\0".join(unique_files).encode("utf-8"))
+          DEDUP_SCRIPT
+          
+          # Convert NUL-delimited list to space-separated for gh command
+          # Use printf to safely handle filenames with spaces
+          RELEASE_FILES=$(cat release_files_dedup.txt | tr '\0' '\n' | grep -v '^$')
           
           gh release create Nightly \
             --title "Nightly" \
             --notes "Automated nightly build from commit ${{ github.sha }}" \
             --prerelease \
             --target ${{ github.sha }} \
-            --clobber \
-            $(cat release_files.txt | tr '\n' ' ')
+            $RELEASE_FILES
 
 
   publish-test-pypi: