regression bug: corrupt filename at open printing to pdf

[Tiemo Hollmann TB]

Hello,

LC 8.1.6 and 8.1.7 on Windows:

I create PDFs with "open printing to pdf myFile.pdf". That works fine as far
the filename doesn't contains Umlaute.

If the filename contains Umlaute 2 PDF files are created (yes 2 files!). The
first file has the correct filename with Umlaute, but 0 KB. The second file
has a filename without the Umlaut (no strange replacement char, just one
char less) and the correct content. When debugging, the filename within LC
looks correct with Umlaut. When printing a PDF without Umlaute in the
filename, everything works fine.

I didn't found any bug in the QC, or am I the first one, using printing to
pdf with European characters? Is there a workaround, anything with Unicode
conversion for the filename?

Thanks

Tiemo