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.

1 files changed, 20 insertions, 0 deletions

diff --git a/test/functional/ui/decorations_spec.lua b/test/functional/ui/decorations_spec.lua
index d680e8b96e..c0c0bf4fc1 100644
--- a/test/functional/ui/decorations_spec.lua
+++ b/test/functional/ui/decorations_spec.lua
@@ -2931,6 +2931,26 @@ describe('extmark decorations', function()
       {1:~                                                 }|*3
                                                         |
     ]])
+    -- Even when virtual line is added as line is concealed #32762
+    feed('5G')
+    api.nvim_buf_clear_namespace(0, ns, 3, 4)
+    feed('j')
+    api.nvim_buf_set_extmark(0, ns, 3, 0, { virt_lines = { { { "virt_below 4" } } } })
+    screen:expect([[
+      {2:  1 }for _,item in ipairs(items) do                |
+      {2:  3 }    if hl_id_cell ~= nil then                 |
+      {2:  4 }        hl_id = hl_id_cell                    |
+      {2:    }virt_below 4                                  |
+      {2:  6 }^    for _ = 1, (count or 1) do                |
+      {2:  7 }        local cell = line[colpos]             |
+      {2:  8 }        cell.text = text                      |
+      {2:  9 }        cell.hl_id = hl_id                    |
+      {2: 10 }        colpos = colpos+1                     |
+      {2: 11 }    end                                       |
+      {2: 12 }end                                           |
+      {1:~                                                 }|*3
+                                                        |
+    ]])
   end)
 end)