Issue Summary

In Jira Cloud, when the interface language is set to Finnish, using the date picker in the Basic Filter to search for issues within a specific date range results in an error message.

Steps to Reproduce

1. Change Personal Settings to set the language to Finnish (Suomi).
2. Utilize the Basic Filter and select dates using the date picker for any given range. 

Expected Results

The date picker should correctly interpret and accept the selected date range without issues.

Actual Results

The filter rejects the date and displays an error stating: "Virheellinen päivämäärämuoto. Syötä päivämäärä muodossa "d/MMM/yy" (in English: "Invalid date format. Enter the date as "d/MMM/yy".").

Workaround

Switch to JQL mode by clicking on the "Vaihda JQL:ksi" link and edit the dates in the text input, in "YYYY-MM-DD" format.