Warning, /office/kbibtex-testset/bib/bug401553-localfile-with-question-mark.bib is written in an unsupported language. File is not indexed.
0001 % To create an example file with a question mark in its filename, run
0002 % echo 'ABC' >'/tmp/test?.txt'
0003
0004 @article{bug401553-localfile-with-question-mark,
0005 title="{A Local File with a Question Mark}",
0006 author="Glyphimor",
0007 year="2018",
0008 month=nov,
0009 localfile="/tmp/test?.txt"
0010 }