Character corruption in markdown diff when scrolling the terminal

[martbrooks]

Describe the problem:

When viewing the output of a git diff, I noticed that the characters displayed change when the terminal is scrolled.

The section of the text that corrupts is that of a markdown table header. The text is literally this:

+| :-- | :-- | :-- |

Screenshots attached showing the character corruption.

This is version 1.0.223

installed from brew.

To Reproduce:

• Edit a markdown file introducing a markdown table.
• Git diff
• Scroll the terminal.

[RanPIKAQ]

I also encountered this issue on macOS. I installed version 1.0.223 via Homebrew. The problem manifests as characters getting scrambled when scrolling up, but they return to normal when scrolling down.

Some scrambled characters don't recover even after scrolling down—they only temporarily restore after resizing the software window, but the issue reappears when scrolling again.

[martbrooks]

I wonder if this is something to do with font ligatures being enabled. Could it be attempting to ligaturise things it should not?

I'll turn it off and see if the problem re-occurs for me.