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undo: always initialize the 'newsize' element in the undo struct 

So that do_redo() cannot set the file size to a "random" value.

This fixes https://savannah.gnu.org/bugs/?54478.
master
David Lawrence Ramsey 2018-08-08 22:38:16 -05:00 committed by Benno Schulenberg
parent e40e6bbf10
commit fd65f74428
1 changed files with 1 additions and 0 deletions
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src/text.c
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@ -1313,6 +1313,7 @@ void add_undo(undo_type action)
u->mark_begin_lineno = openfile->current->lineno; u->mark_begin_lineno = openfile->current->lineno;
u->mark_begin_x = openfile->current_x; u->mark_begin_x = openfile->current_x;
u->wassize = openfile->totsize; u->wassize = openfile->totsize;
u->newsize = openfile->totsize;
u->xflags = 0; u->xflags = 0;
u->grouping = NULL; u->grouping = NULL;