[bug]: Message being repeated on mode change

[OXY2DEV]

I believe this is a variation of neovim/neovim#20416.

Reproduction

• Open Neovim
• Run :write(best if done via keymap).
• Go to command mode(:)
• Exit out of command mode
• A second message appears on screen.

The second message has the wrong kind(set to "" instead of bufwrite).

[OXY2DEV]

You can see it happening here.

[OXY2DEV]

Fix

Make the new message replace the last message, acting like replace_last which is true in this case.

The new kind is ignored and the old kind is used.