a sensitive query ...Gemini! What is this?

When I looked back at my past conversations in Gemini, they had been deleted like this!
When I asked Gemini, it seems it was judged as privacy-related or sensitive content and deleted. It says it cannot be reproduced.

It shouldn't have been that kind of chat... but I can't even check it.
Even if it were that kind of content, I wish it would tell me during the chat!
For the sake of argument, it seems like there should at least be a warning or something before deleting it.

Gemini... I love you, but if this happens frequently, we'll have to say goodbye.

To all Gemini users:
You should save necessary chats before ending the session.

When I looked it up online, it seems 'a sensitive query' is a hot topic.
There is some information that might be useful.
https://support.google.com/gemini/thread/400795137?hl=en&sjid=13656569555631800688-NC

I don't know if it can be restored or not...
I plan to investigate when I have time.

So, the results of my investigation...
• The sensitive judgment is by design
• The reason is undisclosed (disclosing the specifications of safety guards could provide workarounds and potentially cause the guards to stop functioning)
• Restoration is impossible
• It seems you cannot fully retrieve it even with Takeout (it might be possible, but it didn't work in my environment.)

Therefore, caution is required when using Gemini.
・Specifically...
• Gemini is 👉 a temporary thinking aid tool
• Content that becomes a record or asset should 👉 always be saved locally
• Do not entrust 👉 important data to Gemini's history