Error message not displayed when sql statement contains Arabic letters

[hubaishan]

Describe the bug
In Query Tool Error message not displayed when sql statement contains Arabic letters instaed I got this message:

'utf-8' codec can't decode byte 0xda in position 36: invalid continuation byte

To Reproduce

Steps to reproduce the behavior:

1. Go to 'Query Tool'
2. Type this query SELECT Current_DATE from abc WHERE 'علي' = 'علي' note that abc table is not exist.
3. execute the query.
4. See the error

Expected behavior
error message ERROR: relation "abc" does not exist as when using psql.

Error message

I got instead: 'utf-8' codec can't decode byte 0xda in position 36: invalid continuation byte

Desktop (please complete the following information):

• OS: Windows 10 x64
• Version: 8.11

[yogeshmahajan-1903]

@hubaishan
What is encoding of the database?

[hubaishan]

win-1256 in windows 10x64