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patch 8.2.4379: an empty change is reported to a listener

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Problem:    An empty change is reported to a listener.
Solution:   Do not report an empty change. (closes #9768)  Remove unused
            return value.
This commit is contained in:
Bram Moolenaar
2022-02-14 14:51:22 +00:00
parent 6dd7424c7e
commit 55737c2a31
4 changed files with 37 additions and 7 deletions
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4
src/undo.c
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@@ -2828,8 +2828,8 @@ u_undoredo(int undo)
if (curbuf->b_op_end.lnum > top + oldsize)
curbuf->b_op_end.lnum += newsize - oldsize;
}
changed_lines(top + 1, 0, bot, newsize - oldsize);
if (oldsize > 0 || newsize > 0)
changed_lines(top + 1, 0, bot, newsize - oldsize);
// set '[ and '] mark
if (top + 1 < curbuf->b_op_start.lnum)