List of steps to reproduce (step by step, including full links if applicable):

• Open a random article, in editing mode (wikicode), then try to modify a word.

What happens?:
Sometimes, the position where the vertical line text cursor appears does not match with the position where you clicked with the mouse pointer. Sometimes it appears just one line below, sometimes 4 lines below or more. I'm not able to reproduce it intentionnally.

What should have happened instead?:
The point where you click should be the point where the vertical line text cursor appears.

Software version (if not a Wikimedia wiki), browser information, screenshots, other information, etc.:
Windows 10 Family, Firefox Version 98.0.2 (64 bits)