# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1645044303 -3600
# Node ID 1f37e508234350a93aab4413b452dc9fba92e35b
# Parent  30b81ad0e33fbd45de7d36f043015d1c5995cf4e
patch 8.2.4403: ml_get error with nested folds and deleting lines

Commit: https://github.com/vim/vim/commit/943773783384a5ff63f57769d37ddabf8156fe1e
Author: Bram Moolenaar <Bram@vim.org>
Date:   Wed Feb 16 20:30:52 2022 +0000

    patch 8.2.4403: ml_get error with nested folds and deleting lines

    Problem:    ml_get error with nested folds and deleting lines.
    Solution:   Correct the last line number before calling hasFoldingWin().

diff --git a/src/change.c b/src/change.c
--- a/src/change.c
+++ b/src/change.c
@@ -552,6 +552,8 @@ changed_common(
     {
 	if (wp->w_buffer == curbuf)
 	{
+	    linenr_T last = lnume + xtra - 1;  // last line after the change
+
 	    // Mark this window to be redrawn later.
 	    if (wp->w_redr_type < VALID)
 		wp->w_redr_type = VALID;
@@ -561,7 +563,7 @@ changed_common(
 #ifdef FEAT_FOLDING
 	    // Update the folds for this window.  Can't postpone this, because
 	    // a following operator might work on the whole fold: ">>dd".
-	    foldUpdate(wp, lnum, lnume + xtra - 1);
+	    foldUpdate(wp, lnum, last);
 
 	    // The change may cause lines above or below the change to become
 	    // included in a fold.  Set lnum/lnume to the first/last line that
@@ -571,8 +573,8 @@ changed_common(
 	    i = hasFoldingWin(wp, lnum, &lnum, NULL, FALSE, NULL);
 	    if (wp->w_cursor.lnum == lnum)
 		wp->w_cline_folded = i;
-	    i = hasFoldingWin(wp, lnume, NULL, &lnume, FALSE, NULL);
-	    if (wp->w_cursor.lnum == lnume)
+	    i = hasFoldingWin(wp, last, NULL, &last, FALSE, NULL);
+	    if (wp->w_cursor.lnum == last)
 		wp->w_cline_folded = i;
 
 	    // If the changed line is in a range of previously folded lines,
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4403,
+/**/
     4402,
 /**/
     4401,