Bottom border is missing when the commit message is too long

[rockyzhang24]

Description

First enable the border for preview window

require('gitsigns').setup {
  preview_config = {
    border = 'single',
  },
}

Then open an arbitrary file and run :lua require('gitsigns').blame_line({ full = true }) on a certain line with a long enough (longer than the screen height) commit message. The bottom border of the floating window is missing.

(Just FYI: the file I was using in the pic is https://github.com/junegunn/fzf/blob/master/src/core.go)

Neovim version

NVIM v0.10.0-dev-551+ge27377e33

Operating system and version

macOS 13.4.1

Expected behavior

The bottom border should be shown as normal

Actual behavior

The bottom border of the floating window is missing

Minimal config

require('gitsigns').setup {
  preview_config = {
    border = 'single',
  },
}

Steps to reproduce

See the "Description" section above please.

Gitsigns debug messages

No response

[lewis6991]

Is this really a problem?

[rockyzhang24]

Not exactly, but just want to make gitsigns as perfect as possible. Please forgive my perfectionism.

[lewis6991]

I'll accept a PR, but this isn't something I'll have time to fix.

[rockyzhang24]

Already opened a PR to fix this. Thank you.