fix(input): keep pending url clicks across host focus loss (#2291)

Opening a URL raises the browser, which takes focus away from the host
terminal before the mouse release arrives. release_input_source(_headless)
cleared pending_url_click_sources on that focus loss, so the release was
forwarded to the pane and the agent opened the same URL again.

Clear the set in clear_input_source instead, whose only production caller
is remove_client.

refs #2290

Co-authored-by: kataokatsuki <kataokatsuki@users.noreply.github.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/app/mod.rs b/src/app/mod.rs
index 82ac1a60..c27c249e 100644
--- a/src/app/mod.rs
+++ b/src/app/mod.rs
@@ -1778,6 +1778,11 @@ impl App {
     }
 
     pub(crate) fn clear_input_source(&mut self, source_id: InputSourceId) {
+        // Call this only when the input source is gone for good. A pending URL
+        // click has to outlive a plain focus change, because opening the URL
+        // raises the browser and costs the host terminal its focus before the
+        // mouse release arrives.
+        self.pending_url_click_sources.remove(&source_id);
         self.release_input_source_headless(source_id);
     }