[Re-sending to correct mailing-list]

Hello,

This is another follow-up bug-report/patch from:
https://lists.gnu.org/archive/html/auctex-devel/2025-08/msg00026.html

When caching the preamble while previewing files, an ini file is
created..  The attached places this ini file inside TeX-output-dir when
that is non-nil.  A change to the format of the variable
`preview-dumped-alist` was required to save the name of the output file.

Best regards,
-- Al