filtering in preview now interrupted by key events

which makes it more convenient to type long patterns in huge
files: no need to wait between keys

1 files changed, 1 insertions, 2 deletions

diff --git a/src/browser/browser_state.rs b/src/browser/browser_state.rs
index 6d5b342..c9f16ba 100644
--- a/src/browser/browser_state.rs
+++ b/src/browser/browser_state.rs
@@ -347,13 +347,12 @@ impl AppState for BrowserState {
         }
     }
 
-
     fn on_pattern(
         &mut self,
         pat: InputPattern,
         _con: &AppContext,
     ) -> Result<AppStateCmdResult, ProgramError> {
-        if !pat.is_some() {
+        if pat.is_none() {
             self.filtered_tree = None;
         }
         self.pending_pattern = pat;