Python: unhashable type 'list' exception in function_result_content __hash__ function

[berndku]

Describe the bug
A TypeError: unhashable type: 'list' exception is raised when invoking the hash function of function_result_content.

To Reproduce
Steps to reproduce the behavior:

1. Create an agent group chat
2. Add an agent to the group chat with a kernel function that returns a list
3. Invoke the agent through the group chat and let the agent invoke the kernel function that returns a list
4. See error

Expected behavior
no exception if result of function_result_content is of an unhashable type

Platform

• OS: [Windows]
• IDE: [VS Code]
• Language: [Python]
• Source: [Python SDK 1.17.0]

Additional context

TypeError: unhashable type: 'list'
Traceback (most recent call last):
    async for content in group_chat.invoke():
  File "C:\Source\...\evaluation\.venv\Lib\site-packages\semantic_kernel\agents\group_chat\agent_group_chat.py", line 144, in invoke
    async for message in super().invoke_agent(selected_agent):
  File "C:\Source\....\evaluation\.venv\Lib\site-packages\semantic_kernel\agents\group_chat\agent_chat.py", line 144, in invoke_agent
    async for is_visible, message in channel.invoke(agent):
  File "C:\Source\....\evaluation\.venv\Lib\site-packages\semantic_kernel\agents\channels\chat_history_channel.py", line 75, in invoke
    mutated_history.add(mutated_message)
  File "C:\Source\....\evaluation\.venv\Lib\site-packages\semantic_kernel\contents\chat_message_content.py", line 318, in __hash__
    return hash((self.tag, self.role, self.content, self.encoding, self.finish_reason, *self.items))
  File "C:\Source\....\evaluation\.venv\Lib\site-packages\semantic_kernel\contents\function_result_content.py", line 190, in __hash__
    return hash((self.tag, self.id, self.result, self.name, self.function_name, self.plugin_name, self.encoding))
TypeError: unhashable type: 'list'

[moonbox3]

Thanks for filing, @berndku. A PR with a fix will be out shortly.