Fix crash on macOS when closing window with preview active (#454)

CHANGELOG.md

@@ -10,6 +10,7 @@
 - Add end time field to GUI (#451)
 - Change GUI render divisor to 4 decimal places (#451)
 - Fix crash with pitch tracking on low-sample-rate channels (#453)
+- Fix crash on macOS when closing window with preview active (#454) 
 
 ## 0.8.1
 

corrscope/gui/__init__.py

@@ -307,7 +307,7 @@ class MainWindow(qw.QMainWindow, Ui_MainWindow):
             # But since the dialog is modal,
             # self.corr_thread cannot have been replaced by a different thread.
             if self.corr_thread is not None:
-                self.corr_thread.abort_terminate()
+                self.corr_thread.job.abort_terminate()
             return True
 
         return False