2.19.0.rc2.windows.1: stash fails with dirty submodule

[Thomas Braun <thomas.braun@virtuell-zuhause.de>]

Hi,

(reported at [1] already but reposting here as suggested)

I'm using git with stash and rebase builtins.

$ git --version --build-options

git version 2.19.0.rc2.windows.1
cpu: x86_64
built from commit: 425f414f8e04123eacb5597776d6a8de445a8d8b
sizeof-long: 4
sizeof-size_t: 8

With the following recipe

mkdir test
cd test
git init
echo 1 > file
git add file
git commit file -m "message"
git submodule add ./ mysubmod
git commit -m "Add submodule"
echo 2 > mysubmod/file
git checkout -b mybranch
git rebase -i --autosquash master

I get

Initialized empty Git repository in E:/projekte/test/.git/
[master (root-commit) 97c0108] message
 1 file changed, 1 insertion(+)
 create mode 100644 file
Cloning into 'E:/projekte/test/mysubmod'...
done.
[master 282a50f] Add submodule
 2 files changed, 4 insertions(+)
 create mode 100644 .gitmodules
 create mode 160000 mysubmod
Switched to a new branch 'mybranch'
M       mysubmod
fatal: Unexpected stash response: ''

and that used to work with older git versions.

Thanks for reading,
Thomas

[1]:
https://github.com/git-for-windows/git/issues/1820#issuecomment-419411808