Please add a tickbox in Indesign's general preferences (file handeling?) or as a option when exporting to PDF to "Always use current indesign filename". Our PDF exports always need to be identical to the Indesign file name since we handle specific coded. As of now it sometimes uses a random name for the PDF from an previous version or even from a totally different document I worked with the day before. We have accidentally overwritten PDF files from older documents because of this, causing a lot of confusion and backtracking on what went wrong.