A shell started again by pty/ctl exec is guarded against the rename flap as a new one is

The guard that keeps a shell from taking this process's directory before
its chdir lasted only until the first shell spoke; a shell started again
in the same pane (pty/ctl exec) was asked with the old shell's word still
standing. A spawn resets it. fs.py's naming test restarts one too.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/pardes.zig b/src/pardes.zig
index 27cbf383..26c9246a 100644
--- a/src/pardes.zig
+++ b/src/pardes.zig
@@ -4826,6 +4826,9 @@ pub const Pardes = struct {
     /// A child for pane `id` in `cwd`: a directory up to PATH_MAX, the ones
     /// past the effect's inline buffer kept here for perform to give.
     pub fn emitSpawn(p: *Pardes, id: usize, serial: u32, cwd: []const u8) void {
+        // A new shell has not said anything yet (setCwd's guard), whatever
+        // the one it replaces said.
+        if (p.panes[id]) |pane| pane.shell_spoke = false;
         if (p.spawn_dirs[id]) |old| p.gpa.free(old);
         p.spawn_dirs[id] = null;
         if (cwd.len > effect_path_cap) p.spawn_dirs[id] = p.gpa.dupe(u8, cwd) catch null;