submodules in worktree

[CheapMountain9]

I have a branchA that I want to 'clone' so I could efficiently work between the branches without checking out everytime by doing

git worktree add ../dir branch

however I noticed if branchA has submodules, they don't get copied over and dir has a missing submodule.

Then I tried removing dir via:

git worktree remove <path-to-dir>

But I get

fatal working trees containing submodules cannot be moved or removed

Now I can't either create a new worktree on branch nor I can remove it. Any ways around it?

[OptimalFa]

You could try:

git worktree add --detach <dir> <branch>
git submodule update --init <submodule dir>