Preconditions

• HeidiSQL version: 12.5.0.6687
• Database type and version: MySQL 8.0.34
• OS: WIndows 7

Describe the bug

To Reproduce
Type the following.
First, type a select query with any table and put SQL comment dashes at the front so the query is commented.
Then, type another select query underneath without commenting it and run the query.
In the window below you will see query results from table2 table.
Right click on any row and select "Duplicate row without keys" or press "Ctrl" + "Insert". Then click anywhere outside the rows for the row to be actually be inserted. The HeidiSQL will try to create another row in the table2 by using the field names from table1 which will usually cause an error if the column names in either tables are different.

-- SELECT * FROM table1
SELECT * FROM table2

Screenshots or Crash reports