Misaligned Glyphs in Berkeley Mono

Steps to reproduce

1. Using set guifont=BerkeleyMono-Regular:h16 as your font font link (can probably be repro'd with the existing trial
2. See attached screenshot comparing Vim in Ghostty terminal renderer vs MacVim:
   
3. The rounded corner graphics appear broken in MacVim

Expected behaviour

Unclear if the issue is because of how fallback fonts apply or if these are embedded glyphs in the font that are being mis-rendered

Version of Vim and architecture

MacVim 9.1, Included Patches: 1-727

Environment

Operating System: macOS Sequoia (15.0)

How MacVim was installed

Built from source

Logs and stack traces

No response

Vim configuration where issue is reproducable

No response

Issue has been tested with given configuration

• by running MacVim.app from GUI macOS interface
• by running vim/gvim/etc installed by MacVim
• by running other versions of vim (e.g. /usr/bin/vim)

Issue has been tested with no configuration

• by running mvim --clean (or gvim, supplied by MacVim distribution)
• by running vim --clean (in terminal, supplied by MacVim distribution)
• by running vim --clean (in terminal, other suppliers, e.g. /usr/bin/vim)

Other conditions

• The both Homebrew packages "vim" and "macvim" are installed

Reproduce the issue in MacVim.app with BerkeleyMono-Regular at size 16 and compare the rounded glyphs with the attached Ghostty and MacVim screenshot. Then repeat with mvim --clean and record whether the behavior changes; done means identifying the rendering or fallback-font cause and confirming corrected glyph alignment on macOS Sequoia.