I wanted to pull commit \"3a2ceef391af73994dfeb0d8ef57ed6a52ef4238\" from branch android. I used the command:
$ git fetch origin 3a2ceef391af73994dfeb0d8ef57ed6a
git submodule sync as pointed in https://github.com/AppImage/AppImageKit/issues/511 works for me.
git submodule sync