patch 8.2.4627: flatten() does not use maxdepth correctly Commit: https://github.com/vim/vim/commit/acf7d73a7f5cdd63b34de777a4ce5eb3e2ba0ab3 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Mar 25 19:50:57 2022 +0000 patch 8.2.4627: flatten() does not use maxdepth correctly Problem: flatten() does not use maxdepth correctly. Solution: Use a recursive implementation. (closes https://github.com/vim/vim/issues/10020)