From 26321dc1c9556a40e1b51ec0a3820baee539ed3c Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Tue, 19 Mar 2024 08:24:04 -0700
Subject: [PATCH] termio/exec: only clear above cursor if cursor is not on y=0

---
 src/termio/Exec.zig | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/termio/Exec.zig b/src/termio/Exec.zig
index 1dab11741..e3d08f2b3 100644
--- a/src/termio/Exec.zig
+++ b/src/termio/Exec.zig
@@ -478,11 +478,14 @@ pub fn clearScreen(self: *Exec, history: bool) !void {
 
         // If we're not at a prompt, we just delete above the cursor.
         if (!self.terminal.cursorIsAtPrompt()) {
-            self.terminal.screen.clearRows(
-                .{ .active = .{ .y = 0 } },
-                .{ .active = .{ .y = self.terminal.screen.cursor.y - 1 } },
-                false,
-            );
+            if (self.terminal.screen.cursor.y > 0) {
+                self.terminal.screen.clearRows(
+                    .{ .active = .{ .y = 0 } },
+                    .{ .active = .{ .y = self.terminal.screen.cursor.y - 1 } },
+                    false,
+                );
+            }
+
             return;
         }