Auto Save State duplicated outside of core folder name when closing content closes RetroArch.

### Is there an existing issue for this? - [x] This is a bug in RetroArch frontend - [ ] I have searched the existing issues ### Description If closing content quits RetroArch, auto save states are duplicated and placed outside of the core folder name. [*example image*](https://imgur.com/IYwG8Uz), it affects all cores. Git bisect points to f7cf730. @sonninnos This can easily happen when using a custom front-end and RetroArch is configured to quit when launching from the cli. Normal save states are not affected. It’s only when RetroArch quits where it is duplicated. ### Expected behavior _No response_ ### Steps to reproduce the bug 1. enable `Save State: Sort into Folders by Core Name` *enabled by default* 2. set `Quit on Close Content` to ON or CLI 3. enable Auto Save State. 4. run and close. Observe savestate folder. ### Version/Commit 0a29db8 ### Bisect Results f7cf730 ### Present in the nightly version Yes, this is reproduced in the nightly build ### Platform & operating system macOS Tahoe 26.5 (25F71) ### Affected Cores all ### Environment information _No response_ ### Relevant log output ```shell ```