Reverse sort release branches for UI version list

Author: sych74

3rdparty/mkdocs-versioned/mkdocs_versioned/cli.py

@@ -157,13 +157,15 @@ def build_command(config_file, strict, site_dir, branches, default_branch, lates
         virtuozzoVersions = formatedCSVersions.values()
 
     if release_branches is not None:
-        # Sort branch keys numerically (X.Y.Z): oldest -> newest
-        release_branches = sorted(release_branches, key=version_key)
+        # Sort branch keys numerically (X.Y.Z): oldest -> newest,
+        # then reverse to get newest -> oldest for UI version list.
+        sorted_branches = sorted(release_branches, key=version_key)
+        release_branches = list(reversed(sorted_branches))
         # Rebuild virtuozzoVersions list in the same order as release_branches
         virtuozzoVersions = [formatedCSVersions[rb] for rb in release_branches]
 
-        # Take the last (newest) version as default
-        default_version = release_branches[-1] if release_branches else None
+        # Take the first (newest) version as default
+        default_version = release_branches[0] if release_branches else None
 
         print("Default version %s", default_version)
         print("Building %s to /", default_version)