nested + pardes: snapshot updates and small behavior fixes across panes

1 files changed, 6 insertions, 1 deletions

diff --git a/src/file_pane.zig b/src/file_pane.zig
index abf37448..fd0ab2b7 100644
--- a/src/file_pane.zig
+++ b/src/file_pane.zig
@@ -36,7 +36,8 @@ pub const State = struct {
     /// goes through setContent, which bumps this; a pipe completion accepted
     /// against another revision would overwrite intervening work.
     revision: u32 = 0,
-    /// Revision last handed to Save. Equal means the screen matches disk.
+    /// Revision last known to match disk, after Save or an external reload.
+    /// Equal means the screen matches disk.
     saved_revision: u32 = 0,
     /// Non-null for a generated output buffer rather than an on-disk file.
     output: ?output_pane.Output = null,
@@ -485,6 +486,10 @@ pub fn changed(p: *Pardes, id: u8, bytes: []const u8) void {
     const new = p.gpa.dupe(u8, bytes) catch return;
     pushUndo(p, pane);
     setContent(p, f, new);
+    // These bytes came from the watched path, so the new on-screen revision
+    // is already saved. Undoing back to displaced local work bumps revision
+    // again and makes that restored edit dirty, as it should.
+    f.saved_revision = f.revision;
     // restoreSnap only consumes cursor/selection from this synthetic snapshot.
     restoreSnap(pane, f, .{
         .content = undefined,