patch 8.0.0732: when updating a buffer modeless selection is lost commit https://github.com/vim/vim/commit/80dd3f9d41ce2ff6ab3544cdb266627bbdfc34a6 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jul 19 12:51:52 2017 +0200 patch 8.0.0732: when updating a buffer modeless selection is lost Problem: When updating a buffer for a callback the modeless selection is lost. Solution: Do not insert or delete screen lines when redrawing for a callback and there is a modeless selection.

start: foo
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bla bla blah
out " in ""
"'" 'blah'yyyyy'buh'
bla `` b`la
voo "zzzzzzzzzzzzzzzzzzzzzzzzzzzzsd

<begin>
-<b>asdf<i></i>asdf</b>-
-<b></b>-
-<b>asdfasdf</b>-
--
-<b></b>
</begin>
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end: