Bug in creating straight (horizontal) line

Steps to repeat the buggy behaviour when creating a straight line:

1. use trend line icon and click once on chart

2. click shift to make the trend line straight

3. release the click and make the line permanent (still holding shift key)

4. However, when releasing the “shift” key, the trend line becomes non-horizontal.

5. Press the “shift” key without the mouse click, again it will become horizontal.

Expected behaviour:

When releasing mouse click, the line should stay horizontal, while still holding shift key and after releasing shift key.

Hope this helps.