Search with special character "?" breaks search logic

Distribution

Tested in Mint 22 Cinnamon

Package version

6.2.8

Frequency

Always

Bug description

I hope I'm not completely off base here. Nemo seems to treat the question mark as a special character when it's used in a file name search. I believe that it is supposed to match any single character, though I haven't found any documentation of that behavior. But there are many times where it does other odd things as well.

Assume that I have files named A, B, C, AB, BA, BCA, AAA, AAAA, D, AA, BB, and CC.

• Searching for "A B" only returns AB, BA, and BCA, good
• Searching for "A?" should return AA, AB, AAA, and AAAA, but only returns AA and AB. Apparently "A?" is treated as a 2 character search of A followed by any other character. As a RegEx that'd be ^A.$
• Searching for "A B?" should match A and B followed by any single character. It should only match BCA and BA, but it matches A, AAA, AAAA, AB, BA, BCA, AA, and BB.
• Searching for "A B ?" (with a space) matches everything except CC.

Steps to reproduce

Perform a search with "?" as one of the terms or as part of one of the terms

Expected behavior

Make "?" act as expected or clarify the expected behavior.

Thank you!

Additional information

No response

Reproduce the issue in Nemo using the listed filenames and search terms, starting with the search entry point. Trace how question marks and space-separated terms are interpreted, then verify behavior against the examples in the report; done means the expected matches are returned or the behavior is clearly documented.