Concern -

Currently, when we run a search for some Greek characters, we need to compare user input ( for eg this word - ΤΟΜΕΑΣ) with option name in the backend. While comparing we use a lowercase representation of both values. So we need to lowercase user input and value in the Database. We use different methods to do it due to which at times JQL gives different results. As a result, the JQL search thinks those are different options and returns incorrect results.

Replication -

• Create a custom field that contains an option like "ΤΟΜΕΑΣ Word1 Word2"
• Add this field and value to an issue
• Apply basic search for this field and you will notice that looking for ΤΟΜΕΑΣ will not give any issues in return.
• As soon as we remove the word from the value itself, the search starts working fine

In this example, the backend gives different results (τομεας vs τομεασ).

Workaround -

No workaround available