A prompt a 9P request opens is an ask, answered with answer, never stacked

Save through exec on a terminal (or a scratch) opened its path prompt on
screen, where no script could see or answer it, and a second Save stacked
another. Opened while a 9P request is served, it now logs ask <serial>
save path; answer <path> on the pane's ctl saves there and closes it,
answer - closes it; asked again, the open one stands. A pane closed with
it open logs answer <serial> -.

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

1 files changed, 3 insertions, 0 deletions

diff --git a/src/fs.zig b/src/fs.zig
index 2c739115..cb89648c 100644
--- a/src/fs.zig
+++ b/src/fs.zig
@@ -1274,6 +1274,9 @@ pub const Namespace = struct {
     /// A ctl write's failure is being said: its err record logs it, so
     /// no msg does (Messages.reportFailure).
     unlogged: bool = false,
+    /// A 9P request is being served (Pardes.serveFs): a prompt it opens is
+    /// a question for the log (`ask`), answered with `answer`.
+    serving: bool = false,
     refused: bool = false,
     failure: [256]u8 = undefined,
     failure_len: u16 = 0,