Steps to reproduce this issue

Example One
Step 1
Write the following SQL:
SELECT 1;

Step 2:
Press "ctrl+z".

Example Two:
Step 1:
Write the following SQL:
SELECT 1;
SELECT 2;
SELECT 3:

Step 2:
Run

Step 3:
Press "ctrl+z" to undo.

Write a couple different lines of SQL, then press

Current behavior

Example One:
Undo removes "SELECT" and ";" while leaving the "1":
SELECT 1;

undo
1

Example Two:
Undo only behaves on the last sql statement. So I have 3 queries in the window, but only the last one is acted on - however it behaves exactly the same as Example One:
SELECT 1;
SELECT 2;
SELECT 3;

undo
SELECT 1;
SELECT 2;
3

Expected behavior

In both Examples:
Undo should remove the last character first, and continue until the Text Field is empty.

Possible solution

Environment

• HeidiSQL version:
  10.1.0.5464

• Database system and version:
  5.5.61

• Operating system:
  Windows 10