close search and replace dialog after it is used (closes #17625)

Lib/idlelib/ReplaceDialog.py

@@ -122,6 +122,7 @@ class ReplaceDialog(SearchDialogBase):
         text.undo_block_stop()
         if first and last:
             self.show_hit(first, last)
+        self.close()
 
     def do_find(self, ok=0):
         if not self.engine.getprog():

Misc/NEWS

@@ -21,6 +21,8 @@ Core and Builtins
 Library
 -------
 
+- Issue #17625: In IDLE, close the replace dialog after it is used.
+
 - Issue #17531: Fix tests that thought group and user ids were always the int
   type. Also, always allow -1 as a valid group and user id.