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justify: correctly determine whether top-of-buffer has been reached

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The text to be justified has been excised from the buffer and is now
in the cutbuffer, so we cannot compare any of its lines to 'filetop'.

This fixes https://savannah.gnu.org/bugs/?61438.

Bug existed since version 4.0, commit 14c08589.
This commit is contained in:
Benno Schulenberg 2021-11-07 15:15:35 +01:00
parent 13c5bcb4d8
commit 167c93b85c
1 changed files with 1 additions and 1 deletions
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src/text.c
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@ -1467,7 +1467,7 @@ bool begpar(const linestruct *const line, int depth)
/* If this is the very first line of the buffer, it counts as a BOP
* even when it contains no text. */
if (line == openfile->filetop)
if (line->prev == NULL)
return TRUE;
/* If recursion is going too deep, just say it's not a BOP. */