Fix double increase in release script

release.py

@@ -286,8 +286,7 @@ def main(args):
             )
 
             # Changing from alpha to beta should bump the version before release
-            version_diff = next_manifest_version - manifest_version
-            if version_diff.modifier:
+            if manifest_version.alpha and next_manifest_version.beta:
                 next_version = next_manifest_version
             else:
                 next_version = manifest_version