buffer renamed "expand(" on save

This issue has plagued me for years in MacVim and I have not been able to identify the source. It is intermittent, and occurs roughly 1 every 100 hundred saves (so probably 2 or 3 times per day). I cannot say what triggers it but I have not been able to make it go away. Any advice or fix gratefully received.

What happens:

• I hit <D-s> to save current buffer, which is already associated with a filename
• the buffer is not saved
• current buffer is magically renamed expand(, the contents are unaffected
• editing continues as normal (If I try to save again, then a new file called expand( is saved to disk).

Environment

• Vim version 8.2
• MacOS 11.6
• Terminal: GUI

首先，在 macOS 11.6 上使用 Vim 8.2 的 MacVim 中，对一个命名缓冲区使用 ，重现间歇性保存行为。调查缓冲区被重命名为 expand( 前后的保存路径和 GUI 处理。触发问题时，原始缓冲区仍与其文件名保持关联并能够正确保存，即表示完成。