vim-go with coc.nvim: how to rename a package?

I have a file work.go opened in vim-go. It's in package oldpackagename.

I want to refactor and rename it to newpackagename. Is there some tooling for that? The reason is, the initial assumptions for oldpackagename do not apply anymore.

I know I can do search and replace stuff, but usually either

• GoRename resp.
• nmap <leader>rn <Plug>(coc-rename)

work just fine on automatically renaming all occurrences.

But for the package name, I get:

vim-go: [rename] SUCCESS vim-go: cannot rename the identifier at the requested position for GoRename and:

[coc.nvim] Error on rename: The element can't be renamed. for coc.nvim.

Is package renaming different? Do I have to use search/replace or are my configs maybe corrupted?

Under the hood, vim-go uses either gorename or gopls to run :GoRename; the default is now gopls.

Both of these don't support renaming packages:

• Open issue for gopls to support package renaming
• An explicit mention of "package renaming" as a TODO feature in the gorename source code

For coc.nvim, I'm not sure, but it seems to integrate with gopls, so the same lack of support would apply.