From 095c82910b2df5302c75934cb5f7b13bdd759efc Mon Sep 17 00:00:00 2001
From: Daniel Wennberg <daniel.wennberg@gmail.com>
Date: Sun, 11 Jan 2026 22:56:03 -0800
Subject: [PATCH] Terminal: keep cross-boundary rows dirty in
 {insert,delete}Lines

---
 src/terminal/Terminal.zig | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/terminal/Terminal.zig b/src/terminal/Terminal.zig
index 903e427d4..7b384f34e 100644
--- a/src/terminal/Terminal.zig
+++ b/src/terminal/Terminal.zig
@@ -1690,6 +1690,10 @@ pub fn insertLines(self: *Terminal, count: usize) void {
                     // Continue the loop to try handling this row again.
                     continue;
                 };
+
+                // The clone operation may overwrite the dirty flag, so make
+                // sure the row is still marked dirty.
+                dst_row.dirty = true;
             } else {
                 if (!left_right) {
                     // Swap the src/dst cells. This ensures that our dst gets the
@@ -1888,6 +1892,10 @@ pub fn deleteLines(self: *Terminal, count: usize) void {
                     // Continue the loop to try handling this row again.
                     continue;
                 };
+
+                // The clone operation may overwrite the dirty flag, so make
+                // sure the row is still marked dirty.
+                dst_row.dirty = true;
             } else {
                 if (!left_right) {
                     // Swap the src/dst cells. This ensures that our dst gets the