fix(marks): mark winline as invalid if change is in a concealed line (#32766)

Code that checks whether a `w_lines` entry has become invalid due to
a change in a folded line should now also check for concealed lines.

2 files changed, 5 insertions, 4 deletions

diff --git a/src/nvim/buffer_defs.h b/src/nvim/buffer_defs.h
index 95cee3c442..87d548bfab 100644
--- a/src/nvim/buffer_defs.h
+++ b/src/nvim/buffer_defs.h
@@ -810,8 +810,8 @@ struct tabpage_S {
 typedef struct {
   linenr_T wl_lnum;             // buffer line number for logical line
   uint16_t wl_size;             // height in screen lines
-  char wl_valid;                // true values are valid for text in buffer
-  char wl_folded;               // true when this is a range of folded lines
+  bool wl_valid;                // true values are valid for text in buffer
+  bool wl_folded;               // true when this is a range of folded lines
   linenr_T wl_foldend;          // last buffer line number for folded line
   linenr_T wl_lastlnum;         // last buffer line number for logical line
 } wline_T;
diff --git a/src/nvim/change.c b/src/nvim/change.c
index acdf131ddb..28854ae8aa 100644
--- a/src/nvim/change.c
+++ b/src/nvim/change.c
@@ -208,8 +208,9 @@ static void changed_lines_invalidate_win(win_T *wp, linenr_T lnum, colnr_T col,
           wp->w_lines[i].wl_foldend += xtra;
           wp->w_lines[i].wl_lastlnum += xtra;
         }
-      } else if (wp->w_lines[i].wl_foldend >= lnum) {
-        // change somewhere inside this range of folded lines,
+      } else if (wp->w_lines[i].wl_foldend >= lnum
+                 || wp->w_lines[i].wl_lastlnum >= lnum) {
+        // change somewhere inside this range of folded or concealed lines,
         // may need to be redrawn
         wp->w_lines[i].wl_valid = false;
       }