[calendar button] Hide future task immediately after threshold date is set.

Signed-off-by: Ivan Tishchenko <ivan.t7ko@gmail.com>

Author: t7ko

src/com/chschmid/jdotxt/gui/controls/JdotxtTaskPanel.java

@@ -576,10 +576,11 @@ private Void setThresholdDate(LocalDate date) {
 		} else {
 			task.setThresholdDate(null);
 		}
+		textContent.setText(task.getText());
 		fireTaskUpdated(CONTENT);
 			// we're signaling CONTENT change, not CALENDAR, because, really, it's content
 			// that has changed after adding/changing/removing threshold date.
-		textContent.setText(task.getText());
+		fireEnterPressed(CALENDAR); // this will re-apply filters (hide future tasks)
 		return null;
 	}