patch 9.0.0178: cursor position wrong with virtual text before Tab Commit: https://github.com/vim/vim/commit/e428fa04a758cc87ea580c856a796e58e407504b Author: Bram Moolenaar <Bram@vim.org> Date: Tue Aug 9 16:55:41 2022 +0100 patch 9.0.0178: cursor position wrong with virtual text before Tab Problem: Cursor position wrong with virtual text before Tab. Solution: Use the byte length, not the cell with, to compare the column. Correct tab size after text prop. (closes #10866)

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|5| @32|4+0#0000001#ffd7ff255@1| @3| +0#0000000#0000001| +0&#ffffff0@33
|6| @32|5+0#0000001#ffd7ff255| @4| +0#0000000#0000001| +0&#ffffff0@33
|7| @32|6+0#0000001#ffd7ff255@5| +0#0000000#a8a8a8255| +0&#ffffff0@33
|8| @73
|9| @73
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