patch 8.0.0374: invalid memory access when using :sc in Ex mode commit https://github.com/vim/vim/commit/ba748c8a847561c043a63827bcb1d98bdebe16e6 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Feb 26 14:00:07 2017 +0100 patch 8.0.0374: invalid memory access when using :sc in Ex mode Problem: Invalid memory access when using :sc in Ex mode. (Dominique Pelle) Solution: Avoid the column being negative. Also fix a hang in Ex mode.

is<F4>foo
{'silent': 0, 'noremap': 0, 'lhs': 'foo<C-V>', 'mode': ' ', 'nowait': 0, 'expr': 0, 'sid': 0, 'rhs': 'is<F4>foo', 'buffer': 0}
{'silent': 1, 'noremap': 1, 'lhs': 'bar', 'mode': 'v', 'nowait': 0, 'expr': 1, 'sid': 0, 'rhs': 'isbar', 'buffer': 1}
{'silent': 0, 'noremap': 0, 'lhs': 'foo', 'mode': ' ', 'nowait': 1, 'expr': 0, 'sid': 0, 'rhs': 'bar', 'buffer': 1}
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