patch 8.1.0798: changing a blob while iterating over it works strangely commit https://github.com/vim/vim/commit/dd29ea18050284526174b5685781469240f5bc4a Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jan 23 21:56:21 2019 +0100 patch 8.1.0798: changing a blob while iterating over it works strangely Problem: Changing a blob while iterating over it works strangely. Solution: Make a copy of the Blob before iterating.