Running "browse tabnew" command in TUI MacVim crashes Vim

Describe the bug
When running the TUI MacVim, executing the command 'browse tabnew' crashes Vim.

To Reproduce
Detailed steps to reproduce the behavior:

$ cd macvim/src
$ MacVim/build/Release/MacVim.app/Contents/MacOS/Vim
:browse tabnew
Vim: Caught deadly signal BUS
Vim: Finished.
Bus error: 10

I don't have any Vim plugins. But I couldn't reproduce this problem with --clean.

Expected behavior
The command should fail with the E338 error.

Environment (please complete the following information):