bugfix: selected_repository may includes more then two parts, could b… (#7114)

Author: answer-huang

openhands/runtime/base.py

@@ -274,7 +274,7 @@ def clone_repo(
                 'github_token and selected_repository must be provided to clone a repository'
             )
         url = f'https://{github_token.get_secret_value()}@github.com/{selected_repository}.git'
-        dir_name = selected_repository.split('/')[1]
+        dir_name = selected_repository.split('/')[-1]
 
         # Generate a random branch name to avoid conflicts
         random_str = ''.join(
@@ -313,7 +313,7 @@ def get_microagents_from_selected_repo(
         microagents_dir = workspace_root / '.openhands' / 'microagents'
         repo_root = None
         if selected_repository:
-            repo_root = workspace_root / selected_repository.split('/')[1]
+            repo_root = workspace_root / selected_repository.split('/')[-1]
             microagents_dir = repo_root / '.openhands' / 'microagents'
         self.log(
             'info',