Error in RegEx-Parser - different search results

[notesjor]

Kustvakt version
V 0.60.0-DNB-4
and
V 0.59.1

Describe the bug
In my opinion, the following expressions are identical RegEx expressions:
"._innen"
and
".[_]innen"
But they lead to completely different results and result sets.

To Reproduce
"._innen"
https://korap.dnb.de/?q=%22.*_innen%22&ql=poliqarp - 385 Matches
".[_]innen"
https://korap.dnb.de/?q=%22.*%5B_%5Dinnen%22&ql=poliqarp - 696 Matches

Expected behavior
same results

[margaretha]

Hi Jan, thanks for the report. I cannot reproduce the tests on the dnb instance unfortunately. Both queries returns no results. However, I have checked in at our main instance (korap.ids-mannheim.de) and both queries return the same number of results 7,049 with login and using the IDS network. So the problem has probably been fixed in the newer Kustvakt versions :-) We are running v1.0 since yesterday.