[Bug Report]: Weird behaviour while editing a page if template sidebar is closed

[quaintdev]

Describe the Bug

While using markdown editor the cursor if suppose is on line 9 and we are trying to do backspace it ends up editing line 8. This happens when I close the template sidebar.

Steps to Reproduce

1. Create new page
2. Choose template
3. Start editing text
4. Close the sidebar
5. And now cursor is at one line but ends up editing other line (this especially happens if you are trying to navigate using arrow keys, backspace, delete.)

Expected Behaviour

The cursor should not change position when the template sidebar is closed and should only edit the line or text that it is on.

Screenshots or Additional Context

No response

Exact BookStack Version

v21.12.1

PHP Version

No response

Hosting Environment

Hosting on raspberry pi 2 using docker.

[ssddanbrown]

Thanks for reporting @quaintdev, I could confirm this.
From my testing, I don't think this was specifically due to the template system, but could occur whenever the markdown editor box resized (Likely due to sidebar expand/collapse) while having content that may span over a single line. The editor would use old line positioning for the cursor then correct itself after typing.

I have patched this in aaa2205, so that the editor layout is refreshed after resize.
This will be part of the next patch release.